QID 356542

Date Published: 2023-11-08

QID 356542: Amazon Linux Security Advisory for libX11 : ALAS2023-2023-383

Libx11: out-of-bounds memory access in _xkbreadkeysyms() (cve-2023-43785) a vulnerability was found in libx11 due to an infinite loop within the putsubimage() function.
This flaw allows a local user to consume all available system resources and cause a denial of service condition. (
( CVE-2023-43786) libx11: integer overflow in xcreateimage() leading to a heap overflow. (
( CVE-2023-43787)



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 High - 7.8 severity.
  • CVSS V2 rated as Medium - 5.4 severity.
    • Solution
    Please refer to Amazon advisory: ALAS2023-2023-383 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 356542

    CVE-2023-43785 | CVE-2023-43786 | CVE-2023-43787 |
    Software Advisories
    Advisory ID Software Component Link
    ALAS2023-2023-383 amazon linux 2023 URL Logo alas.aws.amazon.com/AL2023/ALAS-2023-383.html
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