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Amazon Linux AMI 2: CVE-2021-20317: Security patch for kernel, microvm-kernel (Multiple Advisories)

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Amazon Linux AMI 2: CVE-2021-20317: Security patch for kernel, microvm-kernel (Multiple Advisories)

Severity
5
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:C)
Published
09/27/2021
Created
11/06/2021
Added
11/05/2021
Modified
09/28/2023

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.

Solution(s)

  • amazon-linux-ami-2-upgrade-kernel
  • amazon-linux-ami-2-upgrade-kernel-debuginfo
  • amazon-linux-ami-2-upgrade-kernel-debuginfo-common-aarch64
  • amazon-linux-ami-2-upgrade-kernel-debuginfo-common-x86_64
  • amazon-linux-ami-2-upgrade-kernel-devel
  • amazon-linux-ami-2-upgrade-kernel-headers
  • amazon-linux-ami-2-upgrade-kernel-livepatch-4-14-252-195-481
  • amazon-linux-ami-2-upgrade-kernel-tools
  • amazon-linux-ami-2-upgrade-kernel-tools-debuginfo
  • amazon-linux-ami-2-upgrade-kernel-tools-devel
  • amazon-linux-ami-2-upgrade-microvm-kernel
  • amazon-linux-ami-2-upgrade-microvm-kernel-debuginfo
  • amazon-linux-ami-2-upgrade-microvm-kernel-debuginfo-common-aarch64
  • amazon-linux-ami-2-upgrade-microvm-kernel-debuginfo-common-x86_64
  • amazon-linux-ami-2-upgrade-microvm-kernel-devel
  • amazon-linux-ami-2-upgrade-microvm-kernel-headers
  • amazon-linux-ami-2-upgrade-perf
  • amazon-linux-ami-2-upgrade-perf-debuginfo
  • amazon-linux-ami-2-upgrade-python-perf
  • amazon-linux-ami-2-upgrade-python-perf-debuginfo

References

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