Rapid7 Vulnerability & Exploit Database

Amazon Linux AMI 2: CVE-2021-33909: Security patch for kernel, kernel-livepatch-4.14.231-173.360, kernel-livepatch-4.14.231-173.361, kernel-livepatch-4.14.232-176.381, kernel-livepatch-4.14.232-177.418, kernel-livepatch-4.14.238-182.421 (Multiple Advisories)

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Amazon Linux AMI 2: CVE-2021-33909: Security patch for kernel, kernel-livepatch-4.14.231-173.360, kernel-livepatch-4.14.231-173.361, kernel-livepatch-4.14.232-176.381, kernel-livepatch-4.14.232-177.418, kernel-livepatch-4.14.238-182.421 (Multiple Advisories)

Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
07/20/2021
Created
07/23/2021
Added
07/22/2021
Modified
01/16/2023

Description

fs/seq_file.c in the Linux kernel 3.16 through 5.13.x before 5.13.4 does not properly restrict seq buffer allocations, leading to an integer overflow, an Out-of-bounds Write, and escalation to root by an unprivileged user, aka CID-8cae8cd89f05.

Solution(s)

  • amazon-linux-ami-2-upgrade-bpftool
  • amazon-linux-ami-2-upgrade-bpftool-debuginfo
  • 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-4-14-231-173-360
  • amazon-linux-ami-2-upgrade-kernel-livepatch-4-14-231-173-360-debuginfo
  • amazon-linux-ami-2-upgrade-kernel-livepatch-4-14-231-173-361
  • amazon-linux-ami-2-upgrade-kernel-livepatch-4-14-231-173-361-debuginfo
  • amazon-linux-ami-2-upgrade-kernel-livepatch-4-14-232-176-381
  • amazon-linux-ami-2-upgrade-kernel-livepatch-4-14-232-176-381-debuginfo
  • amazon-linux-ami-2-upgrade-kernel-livepatch-4-14-232-177-418
  • amazon-linux-ami-2-upgrade-kernel-livepatch-4-14-232-177-418-debuginfo
  • amazon-linux-ami-2-upgrade-kernel-livepatch-4-14-238-182-421
  • amazon-linux-ami-2-upgrade-kernel-livepatch-4-14-238-182-421-debuginfo
  • amazon-linux-ami-2-upgrade-kernel-livepatch-4-14-238-182-422
  • amazon-linux-ami-2-upgrade-kernel-livepatch-5-10-50-44-132
  • 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-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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