Rapid7 Vulnerability & Exploit Database

CentOS Linux: CVE-2021-4154: Important: kernel-rt security and bug fix update (Multiple Advisories)

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CentOS Linux: CVE-2021-4154: Important: kernel-rt security and bug fix update (Multiple Advisories)

Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
02/04/2022
Created
03/12/2022
Added
03/11/2022
Modified
05/25/2023

Description

A use-after-free flaw was found in cgroup1_parse_param in kernel/cgroup/cgroup-v1.c in the Linux kernel's cgroup v1 parser. A local attacker with a user privilege could cause a privilege escalation by exploiting the fsconfig syscall parameter leading to a container breakout and a denial of service on the system.

Solution(s)

  • centos-upgrade-kernel
  • centos-upgrade-kernel-rt
  • centos-upgrade-kpatch-patch-4_18_0-348
  • centos-upgrade-kpatch-patch-4_18_0-348-debuginfo
  • centos-upgrade-kpatch-patch-4_18_0-348-debugsource
  • centos-upgrade-kpatch-patch-4_18_0-348_12_2
  • centos-upgrade-kpatch-patch-4_18_0-348_12_2-debuginfo
  • centos-upgrade-kpatch-patch-4_18_0-348_12_2-debugsource
  • centos-upgrade-kpatch-patch-4_18_0-348_2_1
  • centos-upgrade-kpatch-patch-4_18_0-348_2_1-debuginfo
  • centos-upgrade-kpatch-patch-4_18_0-348_2_1-debugsource
  • centos-upgrade-kpatch-patch-4_18_0-348_7_1
  • centos-upgrade-kpatch-patch-4_18_0-348_7_1-debuginfo
  • centos-upgrade-kpatch-patch-4_18_0-348_7_1-debugsource

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