QID 354840

Date Published: 2023-03-23

QID 354840: Amazon Linux Security Advisory for xorg-x11-server : ALAS-2023-1702

A vulnerability was found in x.org.
This issue occurs due to a dangling pointer in deepcopypointerclasses that can be exploited by procxkbsetdeviceinfo() and procxkbgetdeviceinfo() to read and write into freed memory.
This can lead to local privilege elevation on systems where the x server runs privileged and remote code execution for ssh x forwarding sessions. (
( CVE-2023-0494)



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: ALAS-2023-1702 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 354840

    CVE-2023-0494 |
    Software Advisories
    Advisory ID Software Component Link
    ALAS-2023-1702 amazon linux URL Logo alas.aws.amazon.com/ALAS-2023-1702.html
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