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Alerts This Week
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Debian 11 DLA-4230-1 critical: xorg-server privilege escalation

debian lts
Calendar Grey June 25, 2025
Dist Debian Esm H88
Multiple security flaws identified in xorg-server could result in elevated privileges; Debian LTS users are advised to perform an update.
Nils Emmerich discovered several vulnerabilities in the Xorg X server, which may result in privilege escalation if the X server is running privileged
Topics%20covered

Topics Covered

security advisory update debian privilege escalation vulnerability xorg-server

Summary

For Debian 11 bullseye, these problems have been fixed in version
2:1.20.11-1+deb11u16.

We recommend that you upgrade your xorg-server packages.

For the detailed security status of xorg-server please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/xorg-server

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS


Severity
critical
Lowest
Low
Medium
High
Critical

Package: xorg-server
Version: 2:1.20.11-1+deb11u16
CVE ID: CVE-2025-49175 CVE-2025-49176 CVE-2025-49178 CVE-2025-49179

Topics%20covered

Topics Covered

security advisory update debian privilege escalation vulnerability xorg-server

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