Improper Neutralization of Null Byte or NUL Character Affecting xorg-x11-server-devel package, versions <0:1.20.4-27.el7_9


Severity

Recommended
high

Based on CentOS security rating.

Threat Intelligence

EPSS
0.04% (5th percentile)

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  • Snyk IDSNYK-CENTOS7-XORGX11SERVERDEVEL-6181042
  • published19 Jan 2024
  • disclosed16 Jan 2024

Introduced: 16 Jan 2024

CVE-2024-0408  (opens in a new tab)
CWE-158  (opens in a new tab)

How to fix?

Upgrade Centos:7 xorg-x11-server-devel to version 0:1.20.4-27.el7_9 or higher.

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 Centos. See How to fix? for Centos:7 relevant fixed versions and status.

A flaw was found in the X.Org server. The GLX PBuffer code does not call the XACE hook when creating the buffer, leaving it unlabeled. When the client issues another request to access that resource (as with a GetGeometry) or when it creates another resource that needs to access that buffer, such as a GC, the XSELINUX code will try to use an object that was never labeled and crash because the SID is NULL.

CVSS Scores

version 3.1