<p>Upgrade <code>Amazon-Linux:2018.03</code> <code>xorg-x11-server-devel</code> to version 0:1.17.4-18.50.amzn1 or higher.<br>This issue was patched in <code>ALAS-2023-1689</code>.</p>

Stack-based Buffer Overflow Affecting xorg-x11-server-devel package, versions <0:1.17.4-18.50.amzn1

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1.99% (89^th percentile)

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Snyk ID SNYK-AMZN201803-XORGX11SERVERDEVEL-3330189
published 23 Feb 2023
disclosed 14 Dec 2022

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Introduced: 14 Dec 2022

CVE-2022-46340 Open this link in a new tab CWE-121 Open this link in a new tab

How to fix?

Upgrade Amazon-Linux:2018.03 xorg-x11-server-devel to version 0:1.17.4-18.50.amzn1 or higher.
This issue was patched in ALAS-2023-1689.

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 vulnerability was found in X.Org. This security flaw occurs becuase the swap handler for the XTestFakeInput request of the XTest extension may corrupt the stack if GenericEvents with lengths larger than 32 bytes are sent through a the XTestFakeInput request. This issue can lead to local privileges elevation on systems where the X server is running privileged and remote code execution for ssh X forwarding sessions. This issue does not affect systems where client and server use the same byte order.

References

CVSS Scores

version 3.1

Stack-based Buffer Overflow Affecting xorg-x11-server-devel package, versions <0:1.17.4-18.50.amzn1

Severity

Based on Amazon Linux security rating