CVE-2020-14390
published 2020-09-18CVE-2020-14390: A flaw was found in the Linux kernel in versions before 5.9-rc6. When changing screen size, an out-of-bounds memory write can occur leading to memory…
PriorityP423medium5.6CVSS 3.1
AVLACLPRHUINSUCLILAH
EPSS
0.34%
27.0th percentile
A flaw was found in the Linux kernel in versions before 5.9-rc6. When changing screen size, an out-of-bounds memory write can occur leading to memory corruption or a denial of service. Due to the nature of the flaw, privilege escalation cannot be fully ruled out.
Affected
15 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | linux | < linux 5.8.10-1 (bookworm) | linux 5.8.10-1 (bookworm) |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.8.10-1 | 5.8.10-1 |
| linux | linux_kernel | >= 0 < 5.8.10-1 | 5.8.10-1 |
| linux | linux_kernel | >= 0 < 5.8.10-1 | 5.8.10-1 |
| linux | linux_kernel | >= 0 < 5.8.10-1 | 5.8.10-1 |
| linux | linux_kernel | >= 0 < 4.4.0-197.229 | 4.4.0-197.229 |
| linux | linux_kernel | >= 0 < 4.15.0-128.131 | 4.15.0-128.131 |
| linux | linux_kernel | >= 0 < 4.15.0-126.129 | 4.15.0-126.129 |
| linux | linux_kernel | >= 0 < 5.4.0-58.64 | 5.4.0-58.64 |
| linux | linux_kernel | >= 0 < 5.4.0-56.62 | 5.4.0-56.62 |
| linux | linux_kernel | >= 2.2.3 < 5.9.0 | 5.9.0 |
| msrc | cm1_kernel_5.4.91-3_on_cbl_mariner_1.0 | — | — |
CVSS provenance
nvdv3.15.6MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:H
nvdv2.04.6MEDIUMAV:L/AC:L/Au:N/C:P/I:P/A:P
osv7.8HIGH
vendor_ubuntu7.8HIGH
vendor_debian5.6MEDIUM
vendor_msrc5.6MEDIUM
vendor_redhat5.6MEDIUM
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GHSA
GHSA-h8pg-xg8h-5pgp: A flaw was found in the Linux kernel in versions from 2
ghsa_unreviewed·2022-05-24
CVE-2020-14390 [MEDIUM] CWE-787 GHSA-h8pg-xg8h-5pgp: A flaw was found in the Linux kernel in versions from 2
A flaw was found in the Linux kernel in versions from 2.2.3 through 5.9.rc5. When changing screen size, an out-of-bounds memory write can occur leading to memory corruption or a denial of service. This highest threat from this vulnerability is to system availability.
OSV
linux-oem-5.6 vulnerabilities
osv·2021-04-13·CVSS 7.8
CVE-2021-29154 [HIGH] linux-oem-5.6 vulnerabilities
linux-oem-5.6 vulnerabilities
Piotr Krysiuk discovered that the BPF JIT compiler for x86 in the Linux
kernel did not properly validate computation of branch displacements in
some situations. A local attacker could use this to cause a denial of
service (system crash) or possibly execute arbitrary code. (CVE-2021-29154)
It was discovered that a race condition existed in the binder IPC
implementation in the Linux kernel, leading to a use-after-free
vulnerability. A local attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code. (CVE-2020-0423)
It was discovered that the HID multitouch implementation within the Linux
kernel did not properly validate input events in some situations. A
physically proximate attacker could use this to cause a denial
OSV
linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-gcp, linux-gcp-5.4, linux-hwe-5.4, linux-kvm, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4 regression
osv·2020-12-13·CVSS 7.8
[HIGH] linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-gcp, linux-gcp-5.4, linux-hwe-5.4, linux-kvm, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4 regression
linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-gcp, linux-gcp-5.4, linux-hwe-5.4, linux-kvm, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4 regression
USN-4658-1 fixed vulnerabilities in the Linux kernel. Unfortunately,
that update introduced a regression in the software raid10 driver
when used with fstrim that could lead to data corruption. This update
fixes the problem.
Original advisory details:
It was discovered that a race condition existed in the binder IPC
implementation in the Linux kernel, leading to a use-after-free
vulnerability. A local attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code. (CVE-2020-0423)
Daniele Antonioli, Nils Ole Tippenhauer, and Kasper Rasmussen discovered
that legacy
OSV
linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-gcp, linux-gcp-4.15, linux-gke-4.15, linux-hwe, linux-kvm, linux-oracle, linux-snapdragon regression
osv·2020-12-13·CVSS 7.8
[HIGH] linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-gcp, linux-gcp-4.15, linux-gke-4.15, linux-hwe, linux-kvm, linux-oracle, linux-snapdragon regression
linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-gcp, linux-gcp-4.15, linux-gke-4.15, linux-hwe, linux-kvm, linux-oracle, linux-snapdragon regression
USN-4660-1 fixed vulnerabilities in the Linux kernel. Unfortunately,
that update introduced a regression in the software raid10 driver
when used with fstrim that could lead to data corruption. This update
fixes the problem.
Original advisory details:
It was discovered that a race condition existed in the perf subsystem of
the Linux kernel, leading to a use-after-free vulnerability. An attacker
with access to the perf subsystem could use this to cause a denial of
service (system crash) or possibly execute arbitrary code. (CVE-2020-14351)
It was discovered that the frame buffer implementation in the Linux kernel
did not
OSV
linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-gcp, linux-gcp-5.4, linux-hwe-5.4, linux-kvm, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4 vulnerabilities
osv·2020-12-03·CVSS 7.8
CVE-2020-0423 [HIGH] linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-gcp, linux-gcp-5.4, linux-hwe-5.4, linux-kvm, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4 vulnerabilities
linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-gcp, linux-gcp-5.4, linux-hwe-5.4, linux-kvm, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4 vulnerabilities
It was discovered that a race condition existed in the binder IPC
implementation in the Linux kernel, leading to a use-after-free
vulnerability. A local attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code. (CVE-2020-0423)
Daniele Antonioli, Nils Ole Tippenhauer, and Kasper Rasmussen discovered
that legacy pairing and secure-connections pairing authentication in the
Bluetooth protocol could allow an unauthenticated user to complete
authentication without pairing credentials via adjacent access. A
physically proximate attacker could use this to impers
OSV
linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-gcp, linux-gcp-4.15, linux-gke-4.15, linux-hwe, linux-kvm, linux-oem, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities
osv·2020-12-03·CVSS 7.8
CVE-2020-14351 [HIGH] linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-gcp, linux-gcp-4.15, linux-gke-4.15, linux-hwe, linux-kvm, linux-oem, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities
linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-gcp, linux-gcp-4.15, linux-gke-4.15, linux-hwe, linux-kvm, linux-oem, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities
It was discovered that a race condition existed in the perf subsystem of
the Linux kernel, leading to a use-after-free vulnerability. An attacker
with access to the perf subsystem could use this to cause a denial of
service (system crash) or possibly execute arbitrary code. (CVE-2020-14351)
It was discovered that the frame buffer implementation in the Linux kernel
did not properly handle some edge cases in software scrollback. A local
attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2020-14390)
It was discovered that the netfilter
OSV
linux, linux-aws, linux-azure, linux-kvm, linux-lts-trusty, linux-raspi2, linux-snapdragon vulnerabilities
osv·2020-12-02·CVSS 5.5
CVE-2020-0427 [MEDIUM] linux, linux-aws, linux-azure, linux-kvm, linux-lts-trusty, linux-raspi2, linux-snapdragon vulnerabilities
linux, linux-aws, linux-azure, linux-kvm, linux-lts-trusty, linux-raspi2, linux-snapdragon vulnerabilities
Elena Petrova discovered that the pin controller device tree implementation
in the Linux kernel did not properly handle string references. A local
attacker could use this to expose sensitive information (kernel memory).
(CVE-2020-0427)
Daniele Antonioli, Nils Ole Tippenhauer, and Kasper Rasmussen discovered
that legacy pairing and secure-connections pairing authentication in the
Bluetooth protocol could allow an unauthenticated user to complete
authentication without pairing credentials via adjacent access. A
physically proximate attacker could use this to impersonate a previously
paired Bluetooth device. (CVE-2020-10135)
Andy Nguyen discovered that the Bluetooth A2MP implementatio
OSV
CVE-2020-14390: A flaw was found in the Linux kernel in versions before 5
osv·2020-09-18·CVSS 5.6
CVE-2020-14390 [MEDIUM] CVE-2020-14390: A flaw was found in the Linux kernel in versions before 5
A flaw was found in the Linux kernel in versions before 5.9-rc6. When changing screen size, an out-of-bounds memory write can occur leading to memory corruption or a denial of service. Due to the nature of the flaw, privilege escalation cannot be fully ruled out.
Ubuntu
Linux kernel (OEM) vulnerabilities
vendor_ubuntu·2021-04-13·CVSS 7.8
CVE-2020-14351 [HIGH] Linux kernel (OEM) vulnerabilities
Title: Linux kernel (OEM) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Piotr Krysiuk discovered that the BPF JIT compiler for x86 in the Linux
kernel did not properly validate computation of branch displacements in
some situations. A local attacker could use this to cause a denial of
service (system crash) or possibly execute arbitrary code. (CVE-2021-29154)
It was discovered that a race condition existed in the binder IPC
implementation in the Linux kernel, leading to a use-after-free
vulnerability. A local attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code. (CVE-2020-0423)
It was discovered that the HID multitouch implementation within the Linux
kernel did not properly validate input events in som
Ubuntu
Linux kernel regression
vendor_ubuntu·2020-12-13·CVSS 7.8
[HIGH] Linux kernel regression
Title: Linux kernel regression
Summary: USN-4660-1 introduced a regression in the Linux kernel.
USN-4660-1 fixed vulnerabilities in the Linux kernel. Unfortunately,
that update introduced a regression in the software raid10 driver
when used with fstrim that could lead to data corruption. This update
fixes the problem.
Original advisory details:
It was discovered that a race condition existed in the perf subsystem of
the Linux kernel, leading to a use-after-free vulnerability. An attacker
with access to the perf subsystem could use this to cause a denial of
service (system crash) or possibly execute arbitrary code. (CVE-2020-14351)
It was discovered that the frame buffer implementation in the Linux kernel
did not properly handle some edge cases in software scrollback. A local
attacker
Ubuntu
Linux kernel regression
vendor_ubuntu·2020-12-13·CVSS 7.8
[HIGH] Linux kernel regression
Title: Linux kernel regression
Summary: USN-4658-1 introduced a regression in the Linux kernel.
USN-4658-1 fixed vulnerabilities in the Linux kernel. Unfortunately,
that update introduced a regression in the software raid10 driver
when used with fstrim that could lead to data corruption. This update
fixes the problem.
Original advisory details:
It was discovered that a race condition existed in the binder IPC
implementation in the Linux kernel, leading to a use-after-free
vulnerability. A local attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code. (CVE-2020-0423)
Daniele Antonioli, Nils Ole Tippenhauer, and Kasper Rasmussen discovered
that legacy pairing and secure-connections pairing authentication in the
Bluetooth protocol could allo
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2020-12-03·CVSS 7.8
CVE-2020-25643 [HIGH] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that a race condition existed in the binder IPC
implementation in the Linux kernel, leading to a use-after-free
vulnerability. A local attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code. (CVE-2020-0423)
Daniele Antonioli, Nils Ole Tippenhauer, and Kasper Rasmussen discovered
that legacy pairing and secure-connections pairing authentication in the
Bluetooth protocol could allow an unauthenticated user to complete
authentication without pairing credentials via adjacent access. A
physically proximate attacker could use this to impersonate a previously
paired Bluetooth device. (CVE-2020-10135)
It was discovered that a rac
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2020-12-03·CVSS 7.8
CVE-2020-14351 [HIGH] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that a race condition existed in the perf subsystem of
the Linux kernel, leading to a use-after-free vulnerability. An attacker
with access to the perf subsystem could use this to cause a denial of
service (system crash) or possibly execute arbitrary code. (CVE-2020-14351)
It was discovered that the frame buffer implementation in the Linux kernel
did not properly handle some edge cases in software scrollback. A local
attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2020-14390)
It was discovered that the netfilter connection tracker for netlink in the
Linux kernel did not properly perform bounds checking in som
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2020-12-02·CVSS 5.5
CVE-2020-14351 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Elena Petrova discovered that the pin controller device tree implementation
in the Linux kernel did not properly handle string references. A local
attacker could use this to expose sensitive information (kernel memory).
(CVE-2020-0427)
Daniele Antonioli, Nils Ole Tippenhauer, and Kasper Rasmussen discovered
that legacy pairing and secure-connections pairing authentication in the
Bluetooth protocol could allow an unauthenticated user to complete
authentication without pairing credentials via adjacent access. A
physically proximate attacker could use this to impersonate a previously
paired Bluetooth device. (CVE-2020-10135)
Andy Nguyen discovered that the Bluetooth A2MP implementation in
Red Hat
kernel: out-of-bounds write in fbcon_redraw_softback
vendor_redhat·2020-09-15·CVSS 5.6
CVE-2020-14390 [MEDIUM] CWE-787 kernel: out-of-bounds write in fbcon_redraw_softback
kernel: out-of-bounds write in fbcon_redraw_softback
A flaw was found in the Linux kernel in versions before 5.9-rc6. When changing screen size, an out-of-bounds memory write can occur leading to memory corruption or a denial of service. Due to the nature of the flaw, privilege escalation cannot be fully ruled out.
A flaw was found in the Linux kernel. When changing screen size, an out-of-bounds memory write can occur leading to memory corruption or a denial of service. Due to the nature of the flaw, privilege escalation cannot be fully ruled out.
Statement: Due to this flaw requiring a local user to trigger by using frame buffer fbcon, the impact has been rated as Low.
Mitigation: Mitigation for this issue is either not available or the currently available options don't meet the Red H
Microsoft
A flaw was found in the Linux kernel in versions before 5.9-rc6. When changing screen size an out-of-bounds memory write can occur leading to memory corruption or a denial of service. Due to the natur
vendor_msrc·2020-09-08·CVSS 5.6
CVE-2020-14390 [MEDIUM] CWE-787 A flaw was found in the Linux kernel in versions before 5.9-rc6. When changing screen size an out-of-bounds memory write can occur leading to memory corruption or a denial of service. Due to the natur
A flaw was found in the Linux kernel in versions before 5.9-rc6. When changing screen size an out-of-bounds memory write can occur leading to memory corruption or a denial of service. Due to the nature of the flaw privilege escalation cannot be fully ruled out.
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 im
Debian
CVE-2020-14390: linux - A flaw was found in the Linux kernel in versions before 5.9-rc6. When changing s...
vendor_debian·2020·CVSS 5.6
CVE-2020-14390 [MEDIUM] CVE-2020-14390: linux - A flaw was found in the Linux kernel in versions before 5.9-rc6. When changing s...
A flaw was found in the Linux kernel in versions before 5.9-rc6. When changing screen size, an out-of-bounds memory write can occur leading to memory corruption or a denial of service. Due to the nature of the flaw, privilege escalation cannot be fully ruled out.
Scope: local
bookworm: resolved (fixed in 5.8.10-1)
bullseye: resolved (fixed in 5.8.10-1)
forky: resolved (fixed in 5.8.10-1)
sid: resolved (fixed in 5.8.10-1)
trixie: resolved (fixed in 5.8.10-1)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2020-14390 kernel: out-of-bounds write in fbcon_redraw_softback [fedora-all]
bugzilla·2020-09-17·CVSS 5.6
CVE-2020-14390 [MEDIUM] CVE-2020-14390 kernel: out-of-bounds write in fbcon_redraw_softback [fedora-all]
CVE-2020-14390 kernel: out-of-bounds write in fbcon_redraw_softback [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple supported versi
Bugzilla
CVE-2020-14390 kernel: out-of-bounds write in fbcon_redraw_softback
bugzilla·2020-09-08·CVSS 5.6
CVE-2020-14390 [MEDIUM] CVE-2020-14390 kernel: out-of-bounds write in fbcon_redraw_softback
CVE-2020-14390 kernel: out-of-bounds write in fbcon_redraw_softback
A vulnerability was found in Linux Kernel where the value of vc->vc_origin is not updated in time while invoking vc_do_resize, leading to out-of-bounds write in fbcon_redraw_softback.
Discussion:
Mitigation:
Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
---
Acknowledgments:
Name: Yuan Ming (Tsinghua University)
---
Statement:
Due to this flaw requiring a local user to trigger by using frame buffer fbcon, the impact has been rated as Low.
---
References:
https://www.openwall.com/lists/oss-security/2020/09/15/2
https://seclists.
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00001.htmlhttp://lists.opensuse.org/opensuse-security-announce/2020-10/msg00021.htmlhttps://bugzilla.redhat.com/show_bug.cgi?id=1876788https://lists.debian.org/debian-lts-announce/2020/10/msg00032.htmlhttps://lists.debian.org/debian-lts-announce/2020/10/msg00034.htmlhttp://lists.opensuse.org/opensuse-security-announce/2020-10/msg00001.htmlhttp://lists.opensuse.org/opensuse-security-announce/2020-10/msg00021.htmlhttps://bugzilla.redhat.com/show_bug.cgi?id=1876788https://lists.debian.org/debian-lts-announce/2020/10/msg00032.htmlhttps://lists.debian.org/debian-lts-announce/2020/10/msg00034.html
2020-09-18
Published