QID 353268

Date Published: 2022-04-28

QID 353268: Amazon Linux Security Advisory for expat : ALAS2-2022-1788

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). (
( CVE-2021-45960)



Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

Successful exploitation of this vulnerability could lead to a securitybreach or could affect integrity, availability, and confidentiality.

  • CVSS V3 rated as Critical - 8.8 severity.
  • CVSS V2 rated as Critical - 9 severity.
  • Solution
    Please refer to Amazon advisory: ALAS2-2022-1788 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 353268

    Software Advisories
    Advisory ID Software Component Link
    ALAS2-2022-1788 Amazon Linux 2 URL Logo alas.aws.amazon.com/AL2/ALAS-2022-1788.html