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Amazon Linux AMI: CVE-2021-45960: Security patch for expat (ALAS-2022-1588)

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Amazon Linux AMI: CVE-2021-45960: Security patch for expat (ALAS-2022-1588)

Severity
9
CVSS
(AV:N/AC:L/Au:S/C:C/I:C/A:C)
Published
01/01/2022
Created
06/14/2022
Added
06/10/2022
Modified
06/10/2022

Description

In Expat (aka libexpat) before 2.4.3, a left shift by 29 (or more) places in the storeAtts function in xmlparse.c can lead to realloc misbehavior (e.g., allocating too few bytes, or only freeing memory).

Solution(s)

  • amazon-linux-upgrade-expat

References

  • ALAS-2022-1588
  • CVE-2021-45960
  • USN-5288-1

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