CVE-2023-21400
published 2023-07-13CVE-2023-21400: In multiple functions of io_uring.c, there is a possible kernel memory corruption due to improper locking. This could lead to local escalation of privilege in…
PriorityP431medium6.7CVSS 3.1
AVLACLPRHUINSUCHIHAH
EPSS
0.26%
17.8th percentile
In multiple functions of io_uring.c, there is a possible kernel memory corruption due to improper locking. This could lead to local escalation of privilege in the kernel with System execution privileges needed. User interaction is not needed for exploitation.
Affected
14 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | linux | < linux 5.18.2-1 (bookworm) | linux 5.18.2-1 (bookworm) |
| android | — | — | |
| linux | linux_kernel | >= 0 < 5.10.191-1 | 5.10.191-1 |
| linux | linux_kernel | >= 0 < 5.18.2-1 | 5.18.2-1 |
| linux | linux_kernel | >= 0 < 5.18.2-1 | 5.18.2-1 |
| linux | linux_kernel | >= 0 < 5.18.2-1 | 5.18.2-1 |
| linux | linux_kernel | >= 0 < 5.4.0-205.225 | 5.4.0-205.225 |
| linux | linux_kernel | >= 0 < 5.15.0-82.91 | 5.15.0-82.91 |
| linux | linux_kernel | >= 0 < 4.4.0-245.279 | 4.4.0-245.279 |
| linux | linux_kernel | >= 0 < 4.15.0-218.229 | 4.15.0-218.229 |
| linux | linux_kernel | >= 0 < 5.4.0-205.225 | 5.4.0-205.225 |
| linux | linux_kernel | >= 0 < 5.15.0-84.93 | 5.15.0-84.93 |
CVSS provenance
nvdv3.16.7MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
osv7.8HIGH
vendor_ubuntu7.8HIGH
vendor_debian6.7MEDIUM
vendor_redhat6.7MEDIUM
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OSV
linux-iot vulnerabilities
osv·2025-04-03·CVSS 5.5
CVE-2022-38096 [MEDIUM] linux-iot vulnerabilities
linux-iot vulnerabilities
Ziming Zhang discovered that the DRM driver for VMware Virtual GPU did not
properly handle certain error conditions, leading to a NULL pointer
dereference. A local attacker could possibly trigger this vulnerability to
cause a denial of service. (CVE-2022-38096)
Ye Zhang and Nicolas Wu discovered that the io_uring subsystem in the Linux
kernel did not properly handle locking for rings with IOPOLL, leading to a
double-free vulnerability. A local attacker could use this to cause a
denial of service (system crash) or possibly execute arbitrary code.
(CVE-2023-21400)
Chenyuan Yang discovered that the CEC driver driver in the Linux kernel
contained a use-after-free vulnerability. A local attacker could use this
to cause a denial of service (system crash) or possibly
OSV
linux-xilinx-zynqmp vulnerabilities
osv·2025-02-26·CVSS 6.7
CVE-2023-21400 [MEDIUM] linux-xilinx-zynqmp vulnerabilities
linux-xilinx-zynqmp vulnerabilities
Ye Zhang and Nicolas Wu discovered that the io_uring subsystem in the Linux
kernel did not properly handle locking for rings with IOPOLL, leading to a
double-free vulnerability. A local attacker could use this to cause a
denial of service (system crash) or possibly execute arbitrary code.
(CVE-2023-21400)
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;
- Block layer subsystem;
- ACPI drivers;
- Drivers core;
- ATA over ethernet (AOE) driver;
- TPM device driver;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- I2C subsystem;
- InfiniBand drivers;
- Mailbox framework;
- Multiple devices driver;
- Me
OSV
linux-aws-5.4 linux-raspi-5.4 vulnerabilities
osv·2025-02-25·CVSS 6.7
CVE-2023-21400 [MEDIUM] linux-aws-5.4 linux-raspi-5.4 vulnerabilities
linux-aws-5.4 linux-raspi-5.4 vulnerabilities
Ye Zhang and Nicolas Wu discovered that the io_uring subsystem in the Linux
kernel did not properly handle locking for rings with IOPOLL, leading to a
double-free vulnerability. A local attacker could use this to cause a
denial of service (system crash) or possibly execute arbitrary code.
(CVE-2023-21400)
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:
- TTY drivers;
- Netfilter;
- Network traffic control;
- VMware vSockets driver;
(CVE-2024-53141, CVE-2024-53103, CVE-2024-40967, CVE-2024-53164)
OSV
linux-aws vulnerabilities
osv·2025-02-12·CVSS 6.7
CVE-2023-21400 [MEDIUM] linux-aws vulnerabilities
linux-aws vulnerabilities
Ye Zhang and Nicolas Wu discovered that the io_uring subsystem in the Linux
kernel did not properly handle locking for rings with IOPOLL, leading to a
double-free vulnerability. A local attacker could use this to cause a
denial of service (system crash) or possibly execute arbitrary code.
(CVE-2023-21400)
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:
- TTY drivers;
- Netfilter;
- Network traffic control;
- VMware vSockets driver;
(CVE-2024-53141, CVE-2024-53103, CVE-2024-40967, CVE-2024-53164)
OSV
linux-azure, linux-azure-5.4 vulnerabilities
osv·2025-02-04·CVSS 6.7
CVE-2023-21400 [MEDIUM] linux-azure, linux-azure-5.4 vulnerabilities
linux-azure, linux-azure-5.4 vulnerabilities
Ye Zhang and Nicolas Wu discovered that the io_uring subsystem in the Linux
kernel did not properly handle locking for rings with IOPOLL, leading to a
double-free vulnerability. A local attacker could use this to cause a
denial of service (system crash) or possibly execute arbitrary code.
(CVE-2023-21400)
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:
- TTY drivers;
- Netfilter;
- Network traffic control;
- VMware vSockets driver;
(CVE-2024-53141, CVE-2024-53103, CVE-2024-40967, CVE-2024-53164)
OSV
linux-hwe-5.4 vulnerabilities
osv·2025-01-30·CVSS 6.7
CVE-2023-21400 [MEDIUM] linux-hwe-5.4 vulnerabilities
linux-hwe-5.4 vulnerabilities
Ye Zhang and Nicolas Wu discovered that the io_uring subsystem in the Linux
kernel did not properly handle locking for rings with IOPOLL, leading to a
double-free vulnerability. A local attacker could use this to cause a
denial of service (system crash) or possibly execute arbitrary code.
(CVE-2023-21400)
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:
- TTY drivers;
- Netfilter;
- Network traffic control;
- VMware vSockets driver;
(CVE-2024-53141, CVE-2024-53103, CVE-2024-40967, CVE-2024-53164)
OSV
linux, linux-bluefield, linux-gcp, linux-gcp-5.4, linux-ibm, linux-ibm-5.4, linux-kvm, linux-oracle, linux-oracle-5.4, linux-raspi vulnerabilities
osv·2025-01-28·CVSS 6.7
CVE-2023-21400 [MEDIUM] linux, linux-bluefield, linux-gcp, linux-gcp-5.4, linux-ibm, linux-ibm-5.4, linux-kvm, linux-oracle, linux-oracle-5.4, linux-raspi vulnerabilities
linux, linux-bluefield, linux-gcp, linux-gcp-5.4, linux-ibm, linux-ibm-5.4, linux-kvm, linux-oracle, linux-oracle-5.4, linux-raspi vulnerabilities
Ye Zhang and Nicolas Wu discovered that the io_uring subsystem in the Linux
kernel did not properly handle locking for rings with IOPOLL, leading to a
double-free vulnerability. A local attacker could use this to cause a
denial of service (system crash) or possibly execute arbitrary code.
(CVE-2023-21400)
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:
- TTY drivers;
- Netfilter;
- Network traffic control;
- VMware vSockets driver;
(CVE-2024-53141, CVE-2024-53103, CVE-2024-40967, CVE-2024-53164)
OSV
Kernel Live Patch Security Notice
osv·2023-10-10·CVSS 7.8
CVE-2023-3090 [HIGH] Kernel Live Patch Security Notice
Kernel Live Patch Security Notice
It was discovered that the IP-VLAN network driver for the Linux kernel did
not properly initialize memory in some situations, leading to an out-of-
bounds write vulnerability. An attacker could use this to cause a denial of
service (system crash) or possibly execute arbitrary code.(CVE-2023-3090)
It was discovered that the virtual terminal driver in the Linux kernel
contained a use-after-free vulnerability. A local attacker could use this
to cause a denial of service (system crash) or possibly expose sensitive
information (kernel memory).(CVE-2023-3567)
It was discovered that the universal 32bit network packet classifier
implementation in the Linux kernel did not properly perform reference
counting in some situations, leading to a use-after-free vulnera
OSV
linux-intel-iotg-5.15, linux-raspi vulnerabilities
osv·2023-09-06·CVSS 6.5
CVE-2022-40982 [MEDIUM] linux-intel-iotg-5.15, linux-raspi vulnerabilities
linux-intel-iotg-5.15, linux-raspi vulnerabilities
Daniel Moghimi discovered that some Intel(R) Processors did not properly
clear microarchitectural state after speculative execution of various
instructions. A local unprivileged user could use this to obtain to
sensitive information. (CVE-2022-40982)
Tavis Ormandy discovered that some AMD processors did not properly handle
speculative execution of certain vector register instructions. A local
attacker could use this to expose sensitive information. (CVE-2023-20593)
Ye Zhang and Nicolas Wu discovered that the io_uring subsystem in the Linux
kernel did not properly handle locking for rings with IOPOLL, leading to a
double-free vulnerability. A local attacker could use this to cause a
denial of service (system crash) or possibly execute ar
OSV
linux-gkeop-5.15, linux-intel-iotg vulnerabilities
osv·2023-08-31·CVSS 6.5
CVE-2022-40982 [MEDIUM] linux-gkeop-5.15, linux-intel-iotg vulnerabilities
linux-gkeop-5.15, linux-intel-iotg vulnerabilities
Daniel Moghimi discovered that some Intel(R) Processors did not properly
clear microarchitectural state after speculative execution of various
instructions. A local unprivileged user could use this to obtain to
sensitive information. (CVE-2022-40982)
Tavis Ormandy discovered that some AMD processors did not properly handle
speculative execution of certain vector register instructions. A local
attacker could use this to expose sensitive information. (CVE-2023-20593)
Ye Zhang and Nicolas Wu discovered that the io_uring subsystem in the Linux
kernel did not properly handle locking for rings with IOPOLL, leading to a
double-free vulnerability. A local attacker could use this to cause a
denial of service (system crash) or possibly execute ar
OSV
linux-gcp-5.15 vulnerabilities
osv·2023-08-31·CVSS 6.5
CVE-2022-40982 [MEDIUM] linux-gcp-5.15 vulnerabilities
linux-gcp-5.15 vulnerabilities
Daniel Moghimi discovered that some Intel(R) Processors did not properly
clear microarchitectural state after speculative execution of various
instructions. A local unprivileged user could use this to obtain to
sensitive information. (CVE-2022-40982)
Tavis Ormandy discovered that some AMD processors did not properly handle
speculative execution of certain vector register instructions. A local
attacker could use this to expose sensitive information. (CVE-2023-20593)
Ye Zhang and Nicolas Wu discovered that the io_uring subsystem in the Linux
kernel did not properly handle locking for rings with IOPOLL, leading to a
double-free vulnerability. A local attacker could use this to cause a
denial of service (system crash) or possibly execute arbitrary code.
(CVE-2
OSV
linux-azure, linux-azure-5.15, linux-azure-fde vulnerabilities
osv·2023-08-31·CVSS 6.5
CVE-2022-40982 [MEDIUM] linux-azure, linux-azure-5.15, linux-azure-fde vulnerabilities
linux-azure, linux-azure-5.15, linux-azure-fde vulnerabilities
Daniel Moghimi discovered that some Intel(R) Processors did not properly
clear microarchitectural state after speculative execution of various
instructions. A local unprivileged user could use this to obtain to
sensitive information. (CVE-2022-40982)
William Zhao discovered that the Traffic Control (TC) subsystem in the
Linux kernel did not properly handle network packet retransmission in
certain situations. A local attacker could use this to cause a denial of
service (kernel deadlock). (CVE-2022-4269)
It was discovered that the NTFS file system implementation in the Linux
kernel did not properly check buffer indexes in certain situations, leading
to an out-of-bounds read vulnerability. A local attacker could possibly use
th
OSV
linux, linux-aws, linux-aws-5.15, linux-gcp, linux-gke, linux-gkeop, linux-hwe-5.15, linux-ibm, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-nvidia, linux-oracle, linux-oracle-5.15 vu
osv·2023-08-29·CVSS 6.5
CVE-2022-40982 [MEDIUM] linux, linux-aws, linux-aws-5.15, linux-gcp, linux-gke, linux-gkeop, linux-hwe-5.15, linux-ibm, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-nvidia, linux-oracle, linux-oracle-5.15 vu
linux, linux-aws, linux-aws-5.15, linux-gcp, linux-gke, linux-gkeop, linux-hwe-5.15, linux-ibm, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-nvidia, linux-oracle, linux-oracle-5.15 vulnerabilities
Daniel Moghimi discovered that some Intel(R) Processors did not properly
clear microarchitectural state after speculative execution of various
instructions. A local unprivileged user could use this to obtain to
sensitive information. (CVE-2022-40982)
Tavis Ormandy discovered that some AMD processors did not properly handle
speculative execution of certain vector register instructions. A local
attacker could use this to expose sensitive information. (CVE-2023-20593)
Ye Zhang and Nicolas Wu discovered that the io_uring subsystem in the Linux
kernel did not properly handle lockin
OSV
CVE-2023-21400: In multiple functions of io_uring
osv·2023-07-13·CVSS 6.7
CVE-2023-21400 [MEDIUM] CVE-2023-21400: In multiple functions of io_uring
In multiple functions of io_uring.c, there is a possible kernel memory corruption due to improper locking. This could lead to local escalation of privilege in the kernel with System execution privileges needed. User interaction is not needed for exploitation.
GHSA
GHSA-xjm8-9w9g-9h2f: In multiple functions of io_uring
ghsa_unreviewed·2023-07-13
CVE-2023-21400 [MEDIUM] CWE-667 GHSA-xjm8-9w9g-9h2f: In multiple functions of io_uring
In multiple functions of io_uring.c, there is a possible kernel memory corruption due to improper locking. This could lead to local escalation of privilege in the kernel with System execution privileges needed. User interaction is not needed for exploitation.
Ubuntu
Linux kernel (IoT) vulnerabilities
vendor_ubuntu·2025-04-03·CVSS 6.3
CVE-2024-50006 [MEDIUM] Linux kernel (IoT) vulnerabilities
Title: Linux kernel (IoT) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Ziming Zhang discovered that the DRM driver for VMware Virtual GPU did not
properly handle certain error conditions, leading to a NULL pointer
dereference. A local attacker could possibly trigger this vulnerability to
cause a denial of service. (CVE-2022-38096)
Ye Zhang and Nicolas Wu discovered that the io_uring subsystem in the Linux
kernel did not properly handle locking for rings with IOPOLL, leading to a
double-free vulnerability. A local attacker could use this to cause a
denial of service (system crash) or possibly execute arbitrary code.
(CVE-2023-21400)
Chenyuan Yang discovered that the CEC driver driver in the Linux kernel
contained a use-after-free vulnerability. A loca
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2025-02-26·CVSS 6.7
CVE-2024-50301 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Ye Zhang and Nicolas Wu discovered that the io_uring subsystem in the Linux
kernel did not properly handle locking for rings with IOPOLL, leading to a
double-free vulnerability. A local attacker could use this to cause a
denial of service (system crash) or possibly execute arbitrary code.
(CVE-2023-21400)
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;
- Block layer subsystem;
- ACPI drivers;
- Drivers core;
- ATA over ethernet (AOE) driver;
- TPM device driver;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- I2C subsystem;
- Infini
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2025-02-25·CVSS 6.7
CVE-2024-53103 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Ye Zhang and Nicolas Wu discovered that the io_uring subsystem in the Linux
kernel did not properly handle locking for rings with IOPOLL, leading to a
double-free vulnerability. A local attacker could use this to cause a
denial of service (system crash) or possibly execute arbitrary code.
(CVE-2023-21400)
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:
- TTY drivers;
- Netfilter;
- Network traffic control;
- VMware vSockets driver;
(CVE-2024-53141, CVE-2024-53103, CVE-2024-40967, CVE-2024-53164)
Instructions: After a standard system update you need to reboo
Ubuntu
Linux kernel (AWS) vulnerabilities
vendor_ubuntu·2025-02-12·CVSS 6.7
CVE-2024-40967 [MEDIUM] Linux kernel (AWS) vulnerabilities
Title: Linux kernel (AWS) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Ye Zhang and Nicolas Wu discovered that the io_uring subsystem in the Linux
kernel did not properly handle locking for rings with IOPOLL, leading to a
double-free vulnerability. A local attacker could use this to cause a
denial of service (system crash) or possibly execute arbitrary code.
(CVE-2023-21400)
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:
- TTY drivers;
- Netfilter;
- Network traffic control;
- VMware vSockets driver;
(CVE-2024-53141, CVE-2024-53103, CVE-2024-40967, CVE-2024-53164)
Instructions: After a standard system update you need to
Ubuntu
Linux kernel (Azure) vulnerabilities
vendor_ubuntu·2025-02-04·CVSS 6.7
CVE-2024-53164 [MEDIUM] Linux kernel (Azure) vulnerabilities
Title: Linux kernel (Azure) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Ye Zhang and Nicolas Wu discovered that the io_uring subsystem in the Linux
kernel did not properly handle locking for rings with IOPOLL, leading to a
double-free vulnerability. A local attacker could use this to cause a
denial of service (system crash) or possibly execute arbitrary code.
(CVE-2023-21400)
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:
- TTY drivers;
- Netfilter;
- Network traffic control;
- VMware vSockets driver;
(CVE-2024-53141, CVE-2024-53103, CVE-2024-40967, CVE-2024-53164)
Instructions: After a standard system update you need
Ubuntu
Linux kernel (HWE) vulnerabilities
vendor_ubuntu·2025-01-30·CVSS 6.7
CVE-2024-40967 [MEDIUM] Linux kernel (HWE) vulnerabilities
Title: Linux kernel (HWE) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Ye Zhang and Nicolas Wu discovered that the io_uring subsystem in the Linux
kernel did not properly handle locking for rings with IOPOLL, leading to a
double-free vulnerability. A local attacker could use this to cause a
denial of service (system crash) or possibly execute arbitrary code.
(CVE-2023-21400)
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:
- TTY drivers;
- Netfilter;
- Network traffic control;
- VMware vSockets driver;
(CVE-2024-53141, CVE-2024-53103, CVE-2024-40967, CVE-2024-53164)
Instructions: After a standard system update you need to
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2025-01-28·CVSS 6.7
CVE-2024-40967 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Ye Zhang and Nicolas Wu discovered that the io_uring subsystem in the Linux
kernel did not properly handle locking for rings with IOPOLL, leading to a
double-free vulnerability. A local attacker could use this to cause a
denial of service (system crash) or possibly execute arbitrary code.
(CVE-2023-21400)
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:
- TTY drivers;
- Netfilter;
- Network traffic control;
- VMware vSockets driver;
(CVE-2024-53141, CVE-2024-53103, CVE-2024-40967, CVE-2024-53164)
Instructions: After a standard system update you need to reboo
Ubuntu
Kernel Live Patch Security Notice
vendor_ubuntu·2023-10-10·CVSS 7.8
CVE-2023-3776 [HIGH] Kernel Live Patch Security Notice
Title: Kernel Live Patch Security Notice
Summary: Several security issues were fixed in the kernel.
It was discovered that the IP-VLAN network driver for the Linux kernel did
not properly initialize memory in some situations, leading to an out-of-
bounds write vulnerability. An attacker could use this to cause a denial of
service (system crash) or possibly execute arbitrary code.(CVE-2023-3090)
It was discovered that the virtual terminal driver in the Linux kernel
contained a use-after-free vulnerability. A local attacker could use this
to cause a denial of service (system crash) or possibly expose sensitive
information (kernel memory).(CVE-2023-3567)
It was discovered that the universal 32bit network packet classifier
implementation in the Linux kernel did not properly perform referen
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2023-09-06·CVSS 6.5
CVE-2023-4015 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Daniel Moghimi discovered that some Intel(R) Processors did not properly
clear microarchitectural state after speculative execution of various
instructions. A local unprivileged user could use this to obtain to
sensitive information. (CVE-2022-40982)
Tavis Ormandy discovered that some AMD processors did not properly handle
speculative execution of certain vector register instructions. A local
attacker could use this to expose sensitive information. (CVE-2023-20593)
Ye Zhang and Nicolas Wu discovered that the io_uring subsystem in the Linux
kernel did not properly handle locking for rings with IOPOLL, leading to a
double-free vulnerability. A local attacker could use this to cause a
deni
Ubuntu
Linux kernel (GCP) vulnerabilities
vendor_ubuntu·2023-08-31·CVSS 6.5
CVE-2023-4015 [MEDIUM] Linux kernel (GCP) vulnerabilities
Title: Linux kernel (GCP) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Daniel Moghimi discovered that some Intel(R) Processors did not properly
clear microarchitectural state after speculative execution of various
instructions. A local unprivileged user could use this to obtain to
sensitive information. (CVE-2022-40982)
Tavis Ormandy discovered that some AMD processors did not properly handle
speculative execution of certain vector register instructions. A local
attacker could use this to expose sensitive information. (CVE-2023-20593)
Ye Zhang and Nicolas Wu discovered that the io_uring subsystem in the Linux
kernel did not properly handle locking for rings with IOPOLL, leading to a
double-free vulnerability. A local attacker could use this to cause
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2023-08-31·CVSS 6.5
CVE-2023-3776 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Daniel Moghimi discovered that some Intel(R) Processors did not properly
clear microarchitectural state after speculative execution of various
instructions. A local unprivileged user could use this to obtain to
sensitive information. (CVE-2022-40982)
Tavis Ormandy discovered that some AMD processors did not properly handle
speculative execution of certain vector register instructions. A local
attacker could use this to expose sensitive information. (CVE-2023-20593)
Ye Zhang and Nicolas Wu discovered that the io_uring subsystem in the Linux
kernel did not properly handle locking for rings with IOPOLL, leading to a
double-free vulnerability. A local attacker could use this to cause a
deni
Ubuntu
Linux kernel (Azure) vulnerabilities
vendor_ubuntu·2023-08-31·CVSS 6.5
CVE-2023-3777 [MEDIUM] Linux kernel (Azure) vulnerabilities
Title: Linux kernel (Azure) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Daniel Moghimi discovered that some Intel(R) Processors did not properly
clear microarchitectural state after speculative execution of various
instructions. A local unprivileged user could use this to obtain to
sensitive information. (CVE-2022-40982)
William Zhao discovered that the Traffic Control (TC) subsystem in the
Linux kernel did not properly handle network packet retransmission in
certain situations. A local attacker could use this to cause a denial of
service (kernel deadlock). (CVE-2022-4269)
It was discovered that the NTFS file system implementation in the Linux
kernel did not properly check buffer indexes in certain situations, leading
to an out-of-bounds read vulner
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2023-08-29·CVSS 6.5
CVE-2023-20593 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Daniel Moghimi discovered that some Intel(R) Processors did not properly
clear microarchitectural state after speculative execution of various
instructions. A local unprivileged user could use this to obtain to
sensitive information. (CVE-2022-40982)
Tavis Ormandy discovered that some AMD processors did not properly handle
speculative execution of certain vector register instructions. A local
attacker could use this to expose sensitive information. (CVE-2023-20593)
Ye Zhang and Nicolas Wu discovered that the io_uring subsystem in the Linux
kernel did not properly handle locking for rings with IOPOLL, leading to a
double-free vulnerability. A local attacker could use this to cause a
deni
Red Hat
kernel: io_uring: io_defer_entry object double free vulnerability
vendor_redhat·2023-07-05·CVSS 6.7
CVE-2023-21400 [MEDIUM] CWE-416 kernel: io_uring: io_defer_entry object double free vulnerability
kernel: io_uring: io_defer_entry object double free vulnerability
In multiple functions of io_uring.c, there is a possible kernel memory corruption due to improper locking. This could lead to local escalation of privilege in the kernel with System execution privileges needed. User interaction is not needed for exploitation.
A double-free vulnerability was found in the io_uring subsystem in the Linux kernel. This issue may allow a malicious local user to crash the kernel or elevate their privileges on the system.
Statement: No Red Hat products are affected by this flaw, as the `io_uring` subsystem is not enabled in any shipping kernel release.
Package: kernel (Red Hat Enterprise Linux 6) - Not affected
Package: kernel (Red Hat Enterprise Linux 7) - Not affected
Package: kernel-rt (Red
Debian
CVE-2023-21400: linux - In multiple functions of io_uring.c, there is a possible kernel memory corrupti...
vendor_debian·2023·CVSS 6.7
CVE-2023-21400 [MEDIUM] CVE-2023-21400: linux - In multiple functions of io_uring.c, there is a possible kernel memory corrupti...
In multiple functions of io_uring.c, there is a possible kernel memory corruption due to improper locking. This could lead to local escalation of privilege in the kernel with System execution privileges needed. User interaction is not needed for exploitation.
Scope: local
bookworm: resolved (fixed in 5.18.2-1)
bullseye: resolved (fixed in 5.10.191-1)
forky: resolved (fixed in 5.18.2-1)
sid: resolved (fixed in 5.18.2-1)
trixie: resolved (fixed in 5.18.2-1)
No detection rules found.
No public exploits indexed.
http://packetstormsecurity.com/files/175072/Kernel-Live-Patch-Security-Notice-LSN-0098-1.htmlhttp://www.openwall.com/lists/oss-security/2023/07/14/2http://www.openwall.com/lists/oss-security/2023/07/19/2http://www.openwall.com/lists/oss-security/2023/07/19/7http://www.openwall.com/lists/oss-security/2023/07/25/7https://lists.debian.org/debian-lts-announce/2023/10/msg00027.htmlhttps://security.netapp.com/advisory/ntap-20240119-0012/https://source.android.com/security/bulletin/pixel/2023-07-01https://www.debian.org/security/2023/dsa-5480http://packetstormsecurity.com/files/175072/Kernel-Live-Patch-Security-Notice-LSN-0098-1.htmlhttp://www.openwall.com/lists/oss-security/2023/07/14/2http://www.openwall.com/lists/oss-security/2023/07/19/2http://www.openwall.com/lists/oss-security/2023/07/19/7http://www.openwall.com/lists/oss-security/2023/07/25/7https://lists.debian.org/debian-lts-announce/2023/10/msg00027.htmlhttps://security.netapp.com/advisory/ntap-20240119-0012/https://source.android.com/security/bulletin/pixel/2023-07-01https://www.debian.org/security/2023/dsa-5480
2023-07-13
Published