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Out-of-Bounds Affecting xorg-server package, versions <2:1.20.11-1+deb11u1

0.0
high

Snyk CVSS

    Attack Complexity Low
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.05% (17th percentile)
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NVD
7.8 high
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Red Hat
7.8 high
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SUSE
7.8 high

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  • Snyk ID SNYK-DEBIAN11-XORGSERVER-2320139
  • published 15 Dec 2021
  • disclosed 17 Dec 2021
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Introduced: 15 Dec 2021

CVE-2021-4009 Open this link in a new tab
CWE-119 Open this link in a new tab

How to fix?

Upgrade Debian:11 xorg-server to version 2:1.20.11-1+deb11u1 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 xorg-x11-server in versions before 21.1.2 and before 1.20.14. An out-of-bounds access can occur in the SProcXFixesCreatePointerBarrier function. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

References