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Use After Free Affecting xorg-server package, versions *

low

Snyk CVSS

    Attack Complexity High
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.05% (15th percentile)
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NVD
7 high
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SUSE
7.4 high
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Red Hat
7 high

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  • Snyk ID SNYK-DEBIAN10-XORGSERVER-6035091
  • published 25 Oct 2023
  • disclosed 25 Oct 2023
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Introduced: 25 Oct 2023

CVE-2023-5574 Open this link in a new tab
CWE-416 Open this link in a new tab

How to fix?

There is no fixed version for Debian:10 xorg-server.

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:10 relevant fixed versions and status.

A use-after-free flaw was found in xorg-x11-server-Xvfb. This issue occurs in Xvfb with a very specific and legacy configuration (a multi-screen setup with multiple protocol screens, also known as Zaphod mode). If the pointer is warped from a screen 1 to a screen 0, a use-after-free issue may be triggered during shutdown or reset of the Xvfb server, allowing for possible escalation of privileges or denial of service.