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Out-of-bounds Write Affecting xorg-x11-server-devel package, versions <0:1.17.4-18.56.amzn1

Severity

 Recommended
high

Based on Amazon Linux security rating

    Threat Intelligence

    EPSS
    0.17% (54th percentile)

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  • Snyk ID SNYK-AMZN201803-XORGX11SERVERDEVEL-6730030
  • published 30 Apr 2024
  • disclosed 18 Jan 2024
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Introduced: 18 Jan 2024

CVE-2023-6816 Open this link in a new tab
CWE-787 Open this link in a new tab

How to fix?

Upgrade Amazon-Linux:2018.03 xorg-x11-server-devel to version 0:1.17.4-18.56.amzn1 or higher.
This issue was patched in ALAS-2024-1932.

NVD Description

Note: Versions mentioned in the description apply only to the upstream xorg-x11-server-devel package and not the xorg-x11-server-devel package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2018.03 relevant fixed versions and status.

A flaw was found in X.Org server. Both DeviceFocusEvent and the XIQueryPointer reply contain a bit for each logical button currently down. Buttons can be arbitrarily mapped to any value up to 255, but the X.Org Server was only allocating space for the device's particular number of buttons, leading to a heap overflow if a bigger value was used.

References

CVSS Scores

version 3.1
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NVD

9.8 critical
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SUSE

8.4 high
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Red Hat

9.8 critical