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CVE-2021-20317

Description

A flaw was found in the Linux kernel. A corrupted timer tree caused the task wakeup to be missing in the timerqueue_add function in lib/timerqueue.c. This flaw allows a local attacker with special user privileges to cause a denial of service, slowing and eventually stopping the system while running OSP.

Risk Information

Base Score
4.4
MODERATE
Vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
EPSS Score
Exploitation Probability
0.016

Associated Vulnerability

VulnerabilityOS Platform
(RHSA-2021:4647) kernel security update bpftool-4.18.0-348.2.1.el8_5.x86_64.rpmLinux
(RHSA-2021:4647) kernel security update kernel-4.18.0-348.2.1.el8_5.x86_64.rpmLinux
(RHSA-2021:4647) kernel security update kernel-abi-stablelists-4.18.0-348.2.1.el8_5.noarch.rpmLinux
(RHSA-2021:4647) kernel security update kernel-core-4.18.0-348.2.1.el8_5.x86_64.rpmLinux
(RHSA-2021:4647) kernel security update kernel-cross-headers-4.18.0-348.2.1.el8_5.x86_64.rpmLinux
(RHSA-2021:4647) kernel security update kernel-debug-4.18.0-348.2.1.el8_5.x86_64.rpmLinux
(RHSA-2021:4647) kernel security update kernel-debug-core-4.18.0-348.2.1.el8_5.x86_64.rpmLinux
(RHSA-2021:4647) kernel security update kernel-debug-devel-4.18.0-348.2.1.el8_5.x86_64.rpmLinux
(RHSA-2021:4647) kernel security update kernel-debug-modules-4.18.0-348.2.1.el8_5.x86_64.rpmLinux
(RHSA-2021:4647) kernel security update kernel-debug-modules-extra-4.18.0-348.2.1.el8_5.x86_64.rpmLinux
(RHSA-2021:4647) kernel security update kernel-devel-4.18.0-348.2.1.el8_5.x86_64.rpmLinux
(RHSA-2021:4647) kernel security update kernel-doc-4.18.0-348.2.1.el8_5.noarch.rpmLinux
(RHSA-2021:4647) kernel security update kernel-headers-4.18.0-348.2.1.el8_5.x86_64.rpmLinux
(RHSA-2021:4647) kernel security update kernel-modules-4.18.0-348.2.1.el8_5.x86_64.rpmLinux
(RHSA-2021:4647) kernel security update kernel-modules-extra-4.18.0-348.2.1.el8_5.x86_64.rpmLinux
(RHSA-2021:4647) kernel security update kernel-tools-4.18.0-348.2.1.el8_5.x86_64.rpmLinux
(RHSA-2021:4647) kernel security update kernel-tools-libs-4.18.0-348.2.1.el8_5.x86_64.rpmLinux
(RHSA-2021:4647) kernel security update perf-4.18.0-348.2.1.el8_5.x86_64.rpmLinux
(RHSA-2021:4647) kernel security update python3-perf-4.18.0-348.2.1.el8_5.x86_64.rpmLinux
Linux kernel (USN-5209-1) linux-image-kvm_4.15.0.1105.101_amd64.debLinux
Kernel-uek update (ELSA-2022-9313) kernel-uek-4.14.35-2047.512.6.el7uek.x86_64.rpmLinux
Kernel-uek-debug update (ELSA-2022-9313) kernel-uek-debug-4.14.35-2047.512.6.el7uek.x86_64.rpmLinux
Kernel-uek-debug-devel update (ELSA-2022-9313) kernel-uek-debug-devel-4.14.35-2047.512.6.el7uek.x86_64.rpmLinux
Kernel-uek-devel update (ELSA-2022-9313) kernel-uek-devel-4.14.35-2047.512.6.el7uek.x86_64.rpmLinux
Kernel-uek-doc update (ELSA-2022-9313) kernel-uek-doc-4.14.35-2047.512.6.el7uek.noarch.rpmLinux
Kernel-uek-tools update (ELSA-2022-9313) kernel-uek-tools-4.14.35-2047.512.6.el7uek.x86_64.rpmLinux
Kernel-uek update (ELSA-2022-9367) kernel-uek-4.14.35-2047.513.2.el7uek.x86_64.rpmLinux
Kernel-uek-debug update (ELSA-2022-9367) kernel-uek-debug-4.14.35-2047.513.2.el7uek.x86_64.rpmLinux
Kernel-uek-debug-devel update (ELSA-2022-9367) kernel-uek-debug-devel-4.14.35-2047.513.2.el7uek.x86_64.rpmLinux
Kernel-uek-devel update (ELSA-2022-9367) kernel-uek-devel-4.14.35-2047.513.2.el7uek.x86_64.rpmLinux
Kernel-uek-doc update (ELSA-2022-9367) kernel-uek-doc-4.14.35-2047.513.2.el7uek.noarch.rpmLinux
Kernel-uek-tools update (ELSA-2022-9367) kernel-uek-tools-4.14.35-2047.513.2.el7uek.x86_64.rpmLinux
Linux kernel (USN-5209-1) linux-image-4.15.0-1105-kvm_4.15.0-1105.107_amd64.debLinux
Linux kernel (USN-5209-1) linux-image-4.15.0-1114-gcp_4.15.0-1114.128_amd64.debLinux
Linux kernel (USN-5209-1) linux-image-4.15.0-1118-aws_4.15.0-1118.125_amd64.debLinux
Linux kernel (USN-5209-1) linux-image-4.15.0-1129-azure_4.15.0-1129.142_amd64.debLinux
Linux kernel (USN-5209-1) linux-image-4.15.0-1085-oracle_4.15.0-1085.93_amd64.debLinux
Linux kernel (USN-5209-1) linux-image-4.15.0-166-generic_4.15.0-166.174_i386.debLinux
Linux kernel (USN-5209-1) linux-image-4.15.0-166-generic_4.15.0-166.174_amd64.debLinux
Linux kernel (USN-5209-1) linux-image-4.15.0-1033-dell300x_4.15.0-1033.38_amd64.debLinux
Linux kernel (USN-5209-1) linux-image-4.15.0-166-lowlatency_4.15.0-166.174_i386.debLinux
Linux kernel (USN-5209-1) linux-image-4.15.0-166-lowlatency_4.15.0-166.174_amd64.debLinux
kernel Security Update (ALAS-2021-1719) kernel-livepatch-4.14.252-195.481-1.0-0.amzn2.x86_64.rpmLinux

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234