CVE-2025-21703
published 2025-02-18CVE-2025-21703: In the Linux kernel, the following vulnerability has been resolved: netem: Update sch->q.qlen before qdisc_tree_reduce_backlog() qdisc_tree_reduce_backlog()…
PriorityP336high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.29%
21.1th percentile
In the Linux kernel, the following vulnerability has been resolved:
netem: Update sch->q.qlen before qdisc_tree_reduce_backlog()
qdisc_tree_reduce_backlog() notifies parent qdisc only if child
qdisc becomes empty, therefore we need to reduce the backlog of the
child qdisc before calling it. Otherwise it would miss the opportunity
to call cops->qlen_notify(), in the case of DRR, it resulted in UAF
since DRR uses ->qlen_notify() to maintain its active list.
Affected
35 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.1.129-1 (bookworm) | linux 6.1.129-1 (bookworm) |
| debian | linux-6.1 | < linux 6.1.129-1 (bookworm) | linux 6.1.129-1 (bookworm) |
| chrome_chrome | — | — | |
| linux | linux | — | — |
| linux | linux | >= 10df49cfca73dfbbdb6c4150d859f7e8926ae427 < 7b79ca9a1de6a428d486ff52fb3d602321c08f55 | 7b79ca9a1de6a428d486ff52fb3d602321c08f55 |
| linux | linux | >= 216509dda290f6db92c816dd54b83c1df9da9e76 < 7f31d74fcc556a9166b1bb20515542de7bb939d1 | 7f31d74fcc556a9166b1bb20515542de7bb939d1 |
| linux | linux | >= 356078a5c55ec8d2061fcc009fb8599f5b0527f9 < 6312555249082d6d8cc5321ff725df05482d8b83 | 6312555249082d6d8cc5321ff725df05482d8b83 |
| linux | linux | >= 3824c5fad18eeb7abe0c4fc966f29959552dca3e < 1f8e3f4a4b8b90ad274dfbc66fc7d55cb582f4d5 | 1f8e3f4a4b8b90ad274dfbc66fc7d55cb582f4d5 |
| linux | linux | >= 5.10.232 < 5.10.235 | 5.10.235 |
| linux | linux | >= 5.15.175 < 5.15.179 | 5.15.179 |
| linux | linux | >= 5.4.288 < 5.4.291 | 5.4.291 |
| linux | linux | >= 6.1.121 < 6.1.129 | 6.1.129 |
| linux | linux | >= 6.12.6 < 6.12.14 | 6.12.14 |
| linux | linux | >= 6.6.67 < 6.6.78 | 6.6.78 |
| linux | linux | >= 83c6ab12f08dcc09d4c5ac86fdb89736b28f1d31 < e395fec75ac2dbffc99b4bce57b7f1f3c5449f2c | e395fec75ac2dbffc99b4bce57b7f1f3c5449f2c |
| linux | linux | >= c2047b0e216c8edce227d7c42f99ac2877dad0e4 < 98a2c685293aae122f688cde11d9334dddc5d207 | 98a2c685293aae122f688cde11d9334dddc5d207 |
| linux | linux | >= f8d4bc455047cf3903cd6f85f49978987dbb3027 < 839ecc583fa00fab785fde1c85a326743657fd32 | 839ecc583fa00fab785fde1c85a326743657fd32 |
| linux | linux | >= f8d4bc455047cf3903cd6f85f49978987dbb3027 < 638ba5089324796c2ee49af10427459c2de35f71 | 638ba5089324796c2ee49af10427459c2de35f71 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.10.234-1 | 5.10.234-1 |
| linux | linux_kernel | >= 0 < 6.1.129-1 | 6.1.129-1 |
| linux | linux_kernel | >= 0 < 6.12.15-1 | 6.12.15-1 |
| linux | linux_kernel | >= 0 < 6.12.15-1 | 6.12.15-1 |
| linux | linux_kernel | >= 0 < 5.4.0-214.234 | 5.4.0-214.234 |
| linux | linux_kernel | >= 0 < 5.15.0-138.148 | 5.15.0-138.148 |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv7.8HIGH
vendor_debian7.8HIGH
vendor_msrc7.8HIGH
vendor_redhat7.8HIGH
vendor_ubuntu7.8HIGH
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OSV
linux-xilinx-zynqmp vulnerabilities
osv·2025-05-02·CVSS 5.5
CVE-2025-21703 [MEDIUM] linux-xilinx-zynqmp vulnerabilities
linux-xilinx-zynqmp vulnerabilities
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- GPU drivers;
- Network drivers;
- File systems infrastructure;
- Ext4 file system;
- Network file system (NFS) server daemon;
- Bluetooth subsystem;
- IPv6 networking;
- Network traffic control;
(CVE-2025-21703, CVE-2024-53237, CVE-2024-50256, CVE-2024-56651,
CVE-2024-46826, CVE-2025-21700, CVE-2021-47119, CVE-2024-26915,
CVE-2025-21702, CVE-2024-49974, CVE-2024-35958)
OSV
linux-xilinx-zynqmp vulnerabilities
osv·2025-05-02·CVSS 7.8
CVE-2022-0995 [HIGH] linux-xilinx-zynqmp vulnerabilities
linux-xilinx-zynqmp vulnerabilities
Jann Horn discovered that the watch_queue event notification subsystem in
the Linux kernel contained an out-of-bounds write vulnerability. A local
attacker could use this to cause a denial of service (system crash) or
escalate their privileges. (CVE-2022-0995)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- iSCSI Boot Firmware Table Attributes driver;
- GPU drivers;
- Network drivers;
- File systems infrastructure;
- NTFS3 file system;
- SMB network file system;
- Network namespace;
- Ethernet bridge;
- Networking core;
- Ethtool driver;
- IPv6 networking;
- Network traffic control;
- VMware vSockets driver;
(CVE-2024-50
OSV
linux-aws-5.15 vulnerabilities
osv·2025-04-29·CVSS 7.8
CVE-2022-0995 [HIGH] linux-aws-5.15 vulnerabilities
linux-aws-5.15 vulnerabilities
Jann Horn discovered that the watch_queue event notification subsystem in
the Linux kernel contained an out-of-bounds write vulnerability. A local
attacker could use this to cause a denial of service (system crash) or
escalate their privileges. (CVE-2022-0995)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- iSCSI Boot Firmware Table Attributes driver;
- Network drivers;
- File systems infrastructure;
- NTFS3 file system;
- Ethernet bridge;
- Ethtool driver;
- IPv6 networking;
- Network traffic control;
- VMware vSockets driver;
(CVE-2024-26837, CVE-2025-21993, CVE-2025-21702, CVE-2024-50248,
CVE-2024-46826, CVE-2024-50256, CV
OSV
linux-gcp-5.15 vulnerabilities
osv·2025-04-28·CVSS 7.8
CVE-2022-0995 [HIGH] linux-gcp-5.15 vulnerabilities
linux-gcp-5.15 vulnerabilities
Jann Horn discovered that the watch_queue event notification subsystem in
the Linux kernel contained an out-of-bounds write vulnerability. A local
attacker could use this to cause a denial of service (system crash) or
escalate their privileges. (CVE-2022-0995)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- MIPS architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- SuperH RISC architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- ACPI drivers;
- Drivers core;
- RAM backed block device driver;
- Virtio block driver;
- Data
OSV
linux-oracle-5.15 vulnerabilities
osv·2025-04-25·CVSS 7.8
CVE-2022-0995 [HIGH] linux-oracle-5.15 vulnerabilities
linux-oracle-5.15 vulnerabilities
Jann Horn discovered that the watch_queue event notification subsystem in
the Linux kernel contained an out-of-bounds write vulnerability. A local
attacker could use this to cause a denial of service (system crash) or
escalate their privileges. (CVE-2022-0995)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Network drivers;
- File systems infrastructure;
- NTFS3 file system;
- Ethernet bridge;
- Ethtool driver;
- IPv6 networking;
- Network traffic control;
- VMware vSockets driver;
(CVE-2025-21993, CVE-2025-21703, CVE-2024-50248, CVE-2025-21700,
CVE-2024-50256, CVE-2025-21701, CVE-2024-56651, CVE-2025-21756,
CVE-2024-26837
OSV
linux-intel-iotg-5.15 vulnerabilities
osv·2025-04-24·CVSS 7.8
CVE-2022-0995 [HIGH] linux-intel-iotg-5.15 vulnerabilities
linux-intel-iotg-5.15 vulnerabilities
Jann Horn discovered that the watch_queue event notification subsystem in
the Linux kernel contained an out-of-bounds write vulnerability. A local
attacker could use this to cause a denial of service (system crash) or
escalate their privileges. (CVE-2022-0995)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- MIPS architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- SuperH RISC architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- ACPI drivers;
- Drivers core;
- RAM backed block device driver;
- Virtio block driver;
OSV
linux-aws, linux-aws-5.4, linux-gcp-5.4, linux-iot vulnerabilities
osv·2025-04-24·CVSS 5.5
[MEDIUM] linux-aws, linux-aws-5.4, linux-gcp-5.4, linux-iot vulnerabilities
linux-aws, linux-aws-5.4, linux-gcp-5.4, linux-iot vulnerabilities
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- GPU drivers;
- Network drivers;
- File systems infrastructure;
- Ext4 file system;
- Network file system (NFS) server daemon;
- SMB network file system;
- Network namespace;
- Bluetooth subsystem;
- Networking core;
- IPv6 networking;
- Network traffic control;
(CVE-2024-56658, CVE-2025-21700, CVE-2025-21703, CVE-2024-35864,
CVE-2024-26915, CVE-2021-47119, CVE-2025-21702, CVE-2024-50256,
CVE-2024-35958, CVE-2024-26928, CVE-2024-49974, CVE-2024-46826,
CVE-2024-53237, CVE-2024-56651)
OSV
linux-azure-fips vulnerabilities
osv·2025-04-24·CVSS 7.8
CVE-2022-0995 [HIGH] linux-azure-fips vulnerabilities
linux-azure-fips vulnerabilities
Jann Horn discovered that the watch_queue event notification subsystem in
the Linux kernel contained an out-of-bounds write vulnerability. A local
attacker could use this to cause a denial of service (system crash) or
escalate their privileges. (CVE-2022-0995)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Network drivers;
- Microsoft Azure Network Adapter (MANA) driver;
- File systems infrastructure;
- NTFS3 file system;
- Ethernet bridge;
- Ethtool driver;
- IPv6 networking;
- Network traffic control;
- VMware vSockets driver;
(CVE-2024-26837, CVE-2024-50248, CVE-2025-21756, CVE-2025-21701,
CVE-2024-50256, CVE-2025-21993
OSV
linux-intel-iot-realtime, linux-realtime vulnerabilities
osv·2025-04-24·CVSS 7.8
CVE-2022-0995 [HIGH] linux-intel-iot-realtime, linux-realtime vulnerabilities
linux-intel-iot-realtime, linux-realtime vulnerabilities
Jann Horn discovered that the watch_queue event notification subsystem in
the Linux kernel contained an out-of-bounds write vulnerability. A local
attacker could use this to cause a denial of service (system crash) or
escalate their privileges. (CVE-2022-0995)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Network drivers;
- File systems infrastructure;
- NTFS3 file system;
- Ethernet bridge;
- Ethtool driver;
- IPv6 networking;
- Network traffic control;
- VMware vSockets driver;
(CVE-2024-56651, CVE-2025-21756, CVE-2024-26837, CVE-2025-21700,
CVE-2024-46826, CVE-2024-50256, CVE-2024-50248, CVE-202
OSV
linux-aws-fips vulnerabilities
osv·2025-04-24·CVSS 5.5
[MEDIUM] linux-aws-fips vulnerabilities
linux-aws-fips vulnerabilities
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- GPU drivers;
- Network drivers;
- File systems infrastructure;
- Ext4 file system;
- Network file system (NFS) server daemon;
- SMB network file system;
- Network namespace;
- Bluetooth subsystem;
- Networking core;
- IPv6 networking;
- Network traffic control;
(CVE-2024-56651, CVE-2021-47119, CVE-2025-21700, CVE-2025-21702,
CVE-2024-49974, CVE-2024-56658, CVE-2024-53237, CVE-2025-21703,
CVE-2024-26928, CVE-2024-26915, CVE-2024-35958, CVE-2024-50256,
CVE-2024-35864, CVE-2024-46826)
OSV
linux, linux-azure, linux-azure-5.4, linux-bluefield, linux-gcp, linux-hwe-5.4, linux-ibm, linux-kvm, linux-oracle, linux-oracle-5.4 vulnerabilities
osv·2025-04-24·CVSS 5.5
[MEDIUM] linux, linux-azure, linux-azure-5.4, linux-bluefield, linux-gcp, linux-hwe-5.4, linux-ibm, linux-kvm, linux-oracle, linux-oracle-5.4 vulnerabilities
linux, linux-azure, linux-azure-5.4, linux-bluefield, linux-gcp, linux-hwe-5.4, linux-ibm, linux-kvm, linux-oracle, linux-oracle-5.4 vulnerabilities
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- GPU drivers;
- Network drivers;
- File systems infrastructure;
- Ext4 file system;
- Network file system (NFS) server daemon;
- Bluetooth subsystem;
- IPv6 networking;
- Network traffic control;
(CVE-2024-53237, CVE-2024-50256, CVE-2021-47119, CVE-2024-35958,
CVE-2025-21700, CVE-2025-21703, CVE-2024-56651, CVE-2024-49974,
CVE-2025-21702, CVE-2024-26915, CVE-2024-46826)
OSV
linux, linux-aws, linux-azure, linux-azure-5.15, linux-azure-fde, linux-azure-fde-5.15, linux-gcp, linux-gke, linux-gkeop, linux-hwe-5.15, linux-ibm, linux-intel-iotg, linux-kvm, linux-lowlatency, lin
osv·2025-04-24·CVSS 7.8
[HIGH] linux, linux-aws, linux-azure, linux-azure-5.15, linux-azure-fde, linux-azure-fde-5.15, linux-gcp, linux-gke, linux-gkeop, linux-hwe-5.15, linux-ibm, linux-intel-iotg, linux-kvm, linux-lowlatency, lin
linux, linux-aws, linux-azure, linux-azure-5.15, linux-azure-fde, linux-azure-fde-5.15, linux-gcp, linux-gke, linux-gkeop, linux-hwe-5.15, linux-ibm, linux-intel-iotg, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-nvidia, linux-nvidia-tegra, linux-nvidia-tegra-igx, linux-oracle, linux-raspi vulnerabilities
Jann Horn discovered that the watch_queue event notification subsystem in
the Linux kernel contained an out-of-bounds write vulnerability. A local
attacker could use this to cause a denial of service (system crash) or
escalate their privileges. (CVE-2022-0995)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Network drivers;
- File systems
OSV
linux-azure-fips, linux-fips, linux-gcp-fips vulnerabilities
osv·2025-04-24·CVSS 5.5
CVE-2021-47119 [MEDIUM] linux-azure-fips, linux-fips, linux-gcp-fips vulnerabilities
linux-azure-fips, linux-fips, linux-gcp-fips vulnerabilities
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- GPU drivers;
- Network drivers;
- File systems infrastructure;
- Ext4 file system;
- Network file system (NFS) server daemon;
- Bluetooth subsystem;
- IPv6 networking;
- Network traffic control;
(CVE-2021-47119, CVE-2024-35958, CVE-2025-21700, CVE-2024-53237,
CVE-2024-46826, CVE-2025-21703, CVE-2024-49974, CVE-2025-21702,
CVE-2024-56651, CVE-2024-26915, CVE-2024-50256)
OSV
linux-aws-fips, linux-fips, linux-gcp-fips vulnerabilities
osv·2025-04-24·CVSS 7.8
CVE-2022-0995 [HIGH] linux-aws-fips, linux-fips, linux-gcp-fips vulnerabilities
linux-aws-fips, linux-fips, linux-gcp-fips vulnerabilities
Jann Horn discovered that the watch_queue event notification subsystem in
the Linux kernel contained an out-of-bounds write vulnerability. A local
attacker could use this to cause a denial of service (system crash) or
escalate their privileges. (CVE-2022-0995)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Network drivers;
- File systems infrastructure;
- NTFS3 file system;
- Ethernet bridge;
- Ethtool driver;
- IPv6 networking;
- Network traffic control;
- VMware vSockets driver;
(CVE-2024-26837, CVE-2025-21993, CVE-2025-21702, CVE-2025-21700,
CVE-2025-21701, CVE-2024-50248, CVE-2024-56651, CVE-2
OSV
linux, linux-aws, linux-gcp, linux-hwe-6.11, linux-lowlatency, linux-lowlatency-hwe-6.11, linux-oem-6.11, linux-oracle, linux-raspi, linux-realtime vulnerabilities
osv·2025-04-23·CVSS 5.5
[MEDIUM] linux, linux-aws, linux-gcp, linux-hwe-6.11, linux-lowlatency, linux-lowlatency-hwe-6.11, linux-oem-6.11, linux-oracle, linux-raspi, linux-realtime vulnerabilities
linux, linux-aws, linux-gcp, linux-hwe-6.11, linux-lowlatency, linux-lowlatency-hwe-6.11, linux-oem-6.11, linux-oracle, linux-raspi, linux-realtime vulnerabilities
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- GPIO subsystem;
- GPU drivers;
- IRQ chip drivers;
- Network drivers;
- Mellanox network drivers;
- x86 platform drivers;
- i.MX PM domains;
- SCSI subsystem;
- USB Serial drivers;
- AFS file system;
- GFS2 file system;
- File systems infrastructure;
- Proc file system;
- SMB network file system;
- Timer subsystem;
- Kernel CPU control infrastructure;
- Memory management;
- Networking core;
- Ethtool driver;
- IEEE 802.15.4 subsystem;
- Open vSwitch
OSV
linux-azure, linux-azure-6.11 vulnerabilities
osv·2025-04-23·CVSS 5.5
CVE-2025-2312 [MEDIUM] linux-azure, linux-azure-6.11 vulnerabilities
linux-azure, linux-azure-6.11 vulnerabilities
It was discovered that the CIFS network file system implementation in the
Linux kernel did not properly verify the target namespace when handling
upcalls. An attacker could use this to expose sensitive information.
(CVE-2025-2312)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- GPIO subsystem;
- GPU drivers;
- IRQ chip drivers;
- Network drivers;
- Mellanox network drivers;
- x86 platform drivers;
- i.MX PM domains;
- SCSI subsystem;
- USB Serial drivers;
- AFS file system;
- GFS2 file system;
- File systems infrastructure;
- Proc file system;
- SMB network file system;
- Timer subsystem;
- Kernel CPU control i
OSV
CVE-2025-21703: In the Linux kernel, the following vulnerability has been resolved: netem: Update sch->q
osv·2025-02-18·CVSS 7.8
CVE-2025-21703 [HIGH] CVE-2025-21703: In the Linux kernel, the following vulnerability has been resolved: netem: Update sch->q
In the Linux kernel, the following vulnerability has been resolved: netem: Update sch->q.qlen before qdisc_tree_reduce_backlog() qdisc_tree_reduce_backlog() notifies parent qdisc only if child qdisc becomes empty, therefore we need to reduce the backlog of the child qdisc before calling it. Otherwise it would miss the opportunity to call cops->qlen_notify(), in the case of DRR, it resulted in UAF since DRR uses ->qlen_notify() to maintain its active list.
GHSA
GHSA-cg86-m5xc-jqrm: In the Linux kernel, the following vulnerability has been resolved:
netem: Update sch->q
ghsa_unreviewed·2025-02-18
CVE-2025-21703 [HIGH] CWE-416 GHSA-cg86-m5xc-jqrm: In the Linux kernel, the following vulnerability has been resolved:
netem: Update sch->q
In the Linux kernel, the following vulnerability has been resolved:
netem: Update sch->q.qlen before qdisc_tree_reduce_backlog()
qdisc_tree_reduce_backlog() notifies parent qdisc only if child
qdisc becomes empty, therefore we need to reduce the backlog of the
child qdisc before calling it. Otherwise it would miss the opportunity
to call cops->qlen_notify(), in the case of DRR, it resulted in UAF
since DRR uses ->qlen_notify() to maintain its active list.
Chrome
Long Term Support Channel Update for ChromeOS: CVE-2025-13223
vendor_chrome·2025-11-21·CVSS 7.0
CVE-2025-13223 [HIGH] Long Term Support Channel Update for ChromeOS: CVE-2025-13223
Long Term Support Channel Update for ChromeOS
CVE-2025-13223: Type Confusion in V8. And also CVE-2025-21700, CVE-2025-21703, CVE-2025-21702, CVE-2025-21756, CVE-2025-21971, CVE-2025-21703, CVE-2025-21971, CVE-2025-37798, CVE-2025-37756, CVE-2025-37752, CVE-2025-21836, CVE-2024-27397 Release notes for LTS-138 can be found here Want to know more about Long-term Support? Click here Andy Wu Google Chrome OS
Severity: high
Chrome
Long Term Support Channel Update for ChromeOS: CVE-2025-21703
vendor_chrome·2025-09-03·CVSS 7.8
CVE-2025-21703 [HIGH] Long Term Support Channel Update for ChromeOS: CVE-2025-21703
Long Term Support Channel Update for ChromeOS
CVE-2025-21703
Ubuntu
Linux kernel (Xilinx ZynqMP) vulnerabilities
vendor_ubuntu·2025-05-02·CVSS 7.8
CVE-2022-0995 [HIGH] Linux kernel (Xilinx ZynqMP) vulnerabilities
Title: Linux kernel (Xilinx ZynqMP) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Jann Horn discovered that the watch_queue event notification subsystem in
the Linux kernel contained an out-of-bounds write vulnerability. A local
attacker could use this to cause a denial of service (system crash) or
escalate their privileges. (CVE-2022-0995)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- iSCSI Boot Firmware Table Attributes driver;
- GPU drivers;
- Network drivers;
- File systems infrastructure;
- NTFS3 file system;
- SMB network file system;
- Network namespace;
- Ethernet bridge;
- Networking core;
- Ethtool driver;
-
Ubuntu
Linux kernel (Xilinx ZynqMP) vulnerabilities
vendor_ubuntu·2025-05-02·CVSS 5.5
CVE-2024-53237 [MEDIUM] Linux kernel (Xilinx ZynqMP) vulnerabilities
Title: Linux kernel (Xilinx ZynqMP) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- GPU drivers;
- Network drivers;
- File systems infrastructure;
- Ext4 file system;
- Network file system (NFS) server daemon;
- Bluetooth subsystem;
- IPv6 networking;
- Network traffic control;
(CVE-2025-21703, CVE-2024-53237, CVE-2024-50256, CVE-2024-56651,
CVE-2024-46826, CVE-2025-21700, CVE-2021-47119, CVE-2024-26915,
CVE-2025-21702, CVE-2024-49974, CVE-2024-35958)
Instructions: After a standard system update you need to reboot your computer to make
all the necessary changes.
ATTENTION: D
Ubuntu
Linux kernel (AWS) vulnerabilities
vendor_ubuntu·2025-04-29·CVSS 7.8
CVE-2024-26837 [HIGH] Linux kernel (AWS) vulnerabilities
Title: Linux kernel (AWS) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Jann Horn discovered that the watch_queue event notification subsystem in
the Linux kernel contained an out-of-bounds write vulnerability. A local
attacker could use this to cause a denial of service (system crash) or
escalate their privileges. (CVE-2022-0995)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- iSCSI Boot Firmware Table Attributes driver;
- Network drivers;
- File systems infrastructure;
- NTFS3 file system;
- Ethernet bridge;
- Ethtool driver;
- IPv6 networking;
- Network traffic control;
- VMware vSockets driver;
(CVE-2024-26837, CVE-2
Ubuntu
Linux kernel (GCP) vulnerabilities
vendor_ubuntu·2025-04-28·CVSS 7.8
CVE-2024-56631 [HIGH] Linux kernel (GCP) vulnerabilities
Title: Linux kernel (GCP) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Jann Horn discovered that the watch_queue event notification subsystem in
the Linux kernel contained an out-of-bounds write vulnerability. A local
attacker could use this to cause a denial of service (system crash) or
escalate their privileges. (CVE-2022-0995)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- MIPS architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- SuperH RISC architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- ACPI drivers;
- D
Ubuntu
Linux kernel (Oracle) vulnerabilities
vendor_ubuntu·2025-04-25·CVSS 7.8
CVE-2024-26837 [HIGH] Linux kernel (Oracle) vulnerabilities
Title: Linux kernel (Oracle) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Jann Horn discovered that the watch_queue event notification subsystem in
the Linux kernel contained an out-of-bounds write vulnerability. A local
attacker could use this to cause a denial of service (system crash) or
escalate their privileges. (CVE-2022-0995)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Network drivers;
- File systems infrastructure;
- NTFS3 file system;
- Ethernet bridge;
- Ethtool driver;
- IPv6 networking;
- Network traffic control;
- VMware vSockets driver;
(CVE-2025-21993, CVE-2025-21703, CVE-2024-50248, CVE-2025-21700,
C
Ubuntu
Linux kernel (Azure FIPS) vulnerabilities
vendor_ubuntu·2025-04-24·CVSS 7.8
CVE-2025-21703 [HIGH] Linux kernel (Azure FIPS) vulnerabilities
Title: Linux kernel (Azure FIPS) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Jann Horn discovered that the watch_queue event notification subsystem in
the Linux kernel contained an out-of-bounds write vulnerability. A local
attacker could use this to cause a denial of service (system crash) or
escalate their privileges. (CVE-2022-0995)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Network drivers;
- Microsoft Azure Network Adapter (MANA) driver;
- File systems infrastructure;
- NTFS3 file system;
- Ethernet bridge;
- Ethtool driver;
- IPv6 networking;
- Network traffic control;
- VMware vSockets driver;
(CVE-2024-268
Ubuntu
Linux kernel (Real-time) vulnerabilities
vendor_ubuntu·2025-04-24·CVSS 7.8
CVE-2025-21703 [HIGH] Linux kernel (Real-time) vulnerabilities
Title: Linux kernel (Real-time) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Jann Horn discovered that the watch_queue event notification subsystem in
the Linux kernel contained an out-of-bounds write vulnerability. A local
attacker could use this to cause a denial of service (system crash) or
escalate their privileges. (CVE-2022-0995)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Network drivers;
- File systems infrastructure;
- NTFS3 file system;
- Ethernet bridge;
- Ethtool driver;
- IPv6 networking;
- Network traffic control;
- VMware vSockets driver;
(CVE-2024-56651, CVE-2025-21756, CVE-2024-26837, CVE-2025-21700
Ubuntu
Linux kernel (FIPS) vulnerabilities
vendor_ubuntu·2025-04-24·CVSS 5.5
CVE-2024-26915 [MEDIUM] Linux kernel (FIPS) vulnerabilities
Title: Linux kernel (FIPS) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- GPU drivers;
- Network drivers;
- File systems infrastructure;
- Ext4 file system;
- Network file system (NFS) server daemon;
- Bluetooth subsystem;
- IPv6 networking;
- Network traffic control;
(CVE-2021-47119, CVE-2024-35958, CVE-2025-21700, CVE-2024-53237,
CVE-2024-46826, CVE-2025-21703, CVE-2024-49974, CVE-2025-21702,
CVE-2024-56651, CVE-2024-26915, CVE-2024-50256)
Instructions: After a standard system update you need to reboot your computer to make
all the necessary changes.
ATTENTION: Due to an
Ubuntu
Linux kernel (FIPS) vulnerabilities
vendor_ubuntu·2025-04-24·CVSS 7.8
CVE-2024-26837 [HIGH] Linux kernel (FIPS) vulnerabilities
Title: Linux kernel (FIPS) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Jann Horn discovered that the watch_queue event notification subsystem in
the Linux kernel contained an out-of-bounds write vulnerability. A local
attacker could use this to cause a denial of service (system crash) or
escalate their privileges. (CVE-2022-0995)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Network drivers;
- File systems infrastructure;
- NTFS3 file system;
- Ethernet bridge;
- Ethtool driver;
- IPv6 networking;
- Network traffic control;
- VMware vSockets driver;
(CVE-2024-26837, CVE-2025-21993, CVE-2025-21702, CVE-2025-21700,
CVE
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2025-04-24·CVSS 5.5
CVE-2024-53237 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- GPU drivers;
- Network drivers;
- File systems infrastructure;
- Ext4 file system;
- Network file system (NFS) server daemon;
- Bluetooth subsystem;
- IPv6 networking;
- Network traffic control;
(CVE-2024-53237, CVE-2024-50256, CVE-2021-47119, CVE-2024-35958,
CVE-2025-21700, CVE-2025-21703, CVE-2024-56651, CVE-2024-49974,
CVE-2025-21702, CVE-2024-26915, CVE-2024-46826)
Instructions: After a standard system update you need to reboot your computer to make
all the necessary changes.
ATTENTION: Due to an unavoid
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2025-04-24·CVSS 7.8
CVE-2025-21703 [HIGH] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Jann Horn discovered that the watch_queue event notification subsystem in
the Linux kernel contained an out-of-bounds write vulnerability. A local
attacker could use this to cause a denial of service (system crash) or
escalate their privileges. (CVE-2022-0995)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Network drivers;
- File systems infrastructure;
- NTFS3 file system;
- Ethernet bridge;
- Ethtool driver;
- IPv6 networking;
- Network traffic control;
- VMware vSockets driver;
(CVE-2025-21703, CVE-2024-56651, CVE-2024-50248, CVE-2025-21701,
CVE-2024-2
Ubuntu
Linux kernel (AWS FIPS) vulnerabilities
vendor_ubuntu·2025-04-24·CVSS 5.5
CVE-2024-53237 [MEDIUM] Linux kernel (AWS FIPS) vulnerabilities
Title: Linux kernel (AWS FIPS) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- GPU drivers;
- Network drivers;
- File systems infrastructure;
- Ext4 file system;
- Network file system (NFS) server daemon;
- SMB network file system;
- Network namespace;
- Bluetooth subsystem;
- Networking core;
- IPv6 networking;
- Network traffic control;
(CVE-2024-56651, CVE-2021-47119, CVE-2025-21700, CVE-2025-21702,
CVE-2024-49974, CVE-2024-56658, CVE-2024-53237, CVE-2025-21703,
CVE-2024-26928, CVE-2024-26915, CVE-2024-35958, CVE-2024-50256,
CVE-2024-35864, CVE-2024-46826)
Instructions: Af
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2025-04-24·CVSS 5.5
CVE-2024-26928 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- GPU drivers;
- Network drivers;
- File systems infrastructure;
- Ext4 file system;
- Network file system (NFS) server daemon;
- SMB network file system;
- Network namespace;
- Bluetooth subsystem;
- Networking core;
- IPv6 networking;
- Network traffic control;
(CVE-2024-56658, CVE-2025-21700, CVE-2025-21703, CVE-2024-35864,
CVE-2024-26915, CVE-2021-47119, CVE-2025-21702, CVE-2024-50256,
CVE-2024-35958, CVE-2024-26928, CVE-2024-49974, CVE-2024-46826,
CVE-2024-53237, CVE-2024-56651)
Instructions: After a stand
Ubuntu
Linux kernel (Intel IoTG) vulnerabilities
vendor_ubuntu·2025-04-24·CVSS 7.8
CVE-2024-56631 [HIGH] Linux kernel (Intel IoTG) vulnerabilities
Title: Linux kernel (Intel IoTG) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Jann Horn discovered that the watch_queue event notification subsystem in
the Linux kernel contained an out-of-bounds write vulnerability. A local
attacker could use this to cause a denial of service (system crash) or
escalate their privileges. (CVE-2022-0995)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- MIPS architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- SuperH RISC architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- ACPI drive
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2025-04-23·CVSS 5.5
CVE-2025-21695 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that the CIFS network file system implementation in the
Linux kernel did not properly verify the target namespace when handling
upcalls. An attacker could use this to expose sensitive information.
(CVE-2025-2312)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- GPIO subsystem;
- GPU drivers;
- IRQ chip drivers;
- Network drivers;
- Mellanox network drivers;
- x86 platform drivers;
- i.MX PM domains;
- SCSI subsystem;
- USB Serial drivers;
- AFS file system;
- GFS2 file system;
- File systems infrastructure;
- Proc file system;
- SMB networ
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2025-04-23·CVSS 5.5
CVE-2025-21695 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- GPIO subsystem;
- GPU drivers;
- IRQ chip drivers;
- Network drivers;
- Mellanox network drivers;
- x86 platform drivers;
- i.MX PM domains;
- SCSI subsystem;
- USB Serial drivers;
- AFS file system;
- GFS2 file system;
- File systems infrastructure;
- Proc file system;
- SMB network file system;
- Timer subsystem;
- Kernel CPU control infrastructure;
- Memory management;
- Networking core;
- Ethtool driver;
- IEEE 802.15.4 subsystem;
- Open vSwitch;
- Network traffic control;
- VMware vSockets driver;
(CVE-20
Red Hat
kernel: netem: Update sch->q.qlen before qdisc_tree_reduce_backlog()
vendor_redhat·2025-02-18·CVSS 7.8
CVE-2025-21703 [HIGH] CWE-416 kernel: netem: Update sch->q.qlen before qdisc_tree_reduce_backlog()
kernel: netem: Update sch->q.qlen before qdisc_tree_reduce_backlog()
In the Linux kernel, the following vulnerability has been resolved:
netem: Update sch->q.qlen before qdisc_tree_reduce_backlog()
qdisc_tree_reduce_backlog() notifies parent qdisc only if child
qdisc becomes empty, therefore we need to reduce the backlog of the
child qdisc before calling it. Otherwise it would miss the opportunity
to call cops->qlen_notify(), in the case of DRR, it resulted in UAF
since DRR uses ->qlen_notify() to maintain its active list.
Statement: The bug happens only if emulate network delay, loss, and packet re-ordering qdisc scheduler being used. By default it is disabled. It is hard to trigger it and the security impact is limited.
Mitigation: To mitigate this issue, prevent module sch_netem from
Microsoft
netem: Update sch->q.qlen before qdisc_tree_reduce_backlog()
vendor_msrc·2025-02-11·CVSS 7.8
CVE-2025-21703 [HIGH] CWE-416 netem: Update sch->q.qlen before qdisc_tree_reduce_backlog()
netem: Update sch->q.qlen before qdisc_tree_reduce_backlog()
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
Linux: Linux
Customer Action Required: Yes
Remediation: CBL-Mariner Releases
Reference: https://
Debian
CVE-2025-21703: linux - In the Linux kernel, the following vulnerability has been resolved: netem: Upda...
vendor_debian·2025·CVSS 7.8
CVE-2025-21703 [HIGH] CVE-2025-21703: linux - In the Linux kernel, the following vulnerability has been resolved: netem: Upda...
In the Linux kernel, the following vulnerability has been resolved: netem: Update sch->q.qlen before qdisc_tree_reduce_backlog() qdisc_tree_reduce_backlog() notifies parent qdisc only if child qdisc becomes empty, therefore we need to reduce the backlog of the child qdisc before calling it. Otherwise it would miss the opportunity to call cops->qlen_notify(), in the case of DRR, it resulted in UAF since DRR uses ->qlen_notify() to maintain its active list.
Scope: local
bookworm: resolved (fixed in 6.1.129-1)
bullseye: resolved (fixed in 5.10.234-1)
forky: resolved (fixed in 6.12.15-1)
sid: resolved (fixed in 6.12.15-1)
trixie: resolved (fixed in 6.12.15-1)
Microsoft
PHP-FPM memory access in root process leading to privilege escalation
vendor_msrc·2021-10-12·CVSS 7.8
CVE-2021-21703 [HIGH] CWE-787 PHP-FPM memory access in root process leading to privilege escalation
PHP-FPM memory access in root process leading to privilege escalation
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
php: php
Customer Action Required: Yes
Remediation: CBL-Mariner Releases
Reference: htt
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/1f8e3f4a4b8b90ad274dfbc66fc7d55cb582f4d5https://git.kernel.org/stable/c/6312555249082d6d8cc5321ff725df05482d8b83https://git.kernel.org/stable/c/638ba5089324796c2ee49af10427459c2de35f71https://git.kernel.org/stable/c/7b79ca9a1de6a428d486ff52fb3d602321c08f55https://git.kernel.org/stable/c/7f31d74fcc556a9166b1bb20515542de7bb939d1https://git.kernel.org/stable/c/839ecc583fa00fab785fde1c85a326743657fd32https://git.kernel.org/stable/c/98a2c685293aae122f688cde11d9334dddc5d207https://git.kernel.org/stable/c/e395fec75ac2dbffc99b4bce57b7f1f3c5449f2chttps://lists.debian.org/debian-lts-announce/2025/03/msg00028.html
2025-02-18
Published