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Amazon Linux AMI: CVE-2018-20669: Security patch for kernel (ALAS-2020-1401)

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Amazon Linux AMI: CVE-2018-20669: Security patch for kernel (ALAS-2020-1401)

Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
02/18/2019
Created
07/21/2020
Added
07/18/2020
Modified
10/14/2022

Description

An issue where a provided address with access_ok() is not checked was discovered in i915_gem_execbuffer2_ioctl in drivers/gpu/drm/i915/i915_gem_execbuffer.c in the Linux kernel through 4.19.13. A local attacker can craft a malicious IOCTL function call to overwrite arbitrary kernel memory, resulting in a Denial of Service or privilege escalation.

Solution(s)

  • amazon-linux-upgrade-kernel

References

  • ALAS-2020-1401
  • USN-4485-1
  • CVE-2018-20669

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