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Use After Free Affecting xorg-x11-server-devel package, versions <0:1.17.4-18.50.amzn1

Severity

 Recommended
0.0
high
0
10

Based on Amazon Linux security rating

    Threat Intelligence

    EPSS
    2.83% (91st percentile)

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  • Snyk ID SNYK-AMZN201803-XORGX11SERVERDEVEL-3330029
  • published 23 Feb 2023
  • disclosed 14 Dec 2022
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Introduced: 14 Dec 2022

CVE-2022-46343 Open this link in a new tab
CWE-416 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 because the handler for the ScreenSaverSetAttributes request may write to memory after it has been freed. 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.

References

CVSS Scores

version 3.1
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NVD

8.8 high
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SUSE

4.4 medium
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Red Hat

8.8 high