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Heap-based Buffer Overflow Affecting xorg-server package, versions <2:1.20.11-1+deb11u11

low

Snyk CVSS

      Threat Intelligence

      EPSS 0.05% (15th percentile)
    Expand this section
    SUSE
    8.4 high
    Expand this section
    Red Hat
    7.8 high

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    • Snyk ID SNYK-DEBIAN11-XORGSERVER-6159339
    • published 16 Jan 2024
    • disclosed 28 Feb 2024
    Report a new vulnerability Found a mistake?

    Introduced: 16 Jan 2024

    CVE-2024-21885 Open this link in a new tab
    CWE-122 Open this link in a new tab

    How to fix?

    Upgrade Debian:11 xorg-server to version 2:1.20.11-1+deb11u11 or higher.

    NVD Description

    Note: Versions mentioned in the description apply only to the upstream xorg-server package and not the xorg-server package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

    A flaw was found in X.Org server. In the XISendDeviceHierarchyEvent function, it is possible to exceed the allocated array length when certain new device IDs are added to the xXIHierarchyInfo struct. This can trigger a heap buffer overflow condition, which may lead to an application crash or remote code execution in SSH X11 forwarding environments.