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Debian 9 Stretch: DLA-2869-1 Critical: Xorg-Server Privilege Escalation

debian lts
Calendar Grey December 29, 2021
Dist Debian Esm H88
The Debian DLA-2869-1 update tackles privilege escalation vulnerabilities in xorg-server, crucial for user security. Admins must assess these fixes and update promptly
Jan-Niklas Sohn discovered that multiple input validation failures in X server extensions of the X.org X server may result in privilege escalation if the X server is running privil...
Topics%20covered

Topics Covered

security advisory security update debian privilege escalation input validation xorg-server

Summary

Jan-Niklas Sohn discovered that multiple input validation failures in X
server extensions of the X.org X server may result in privilege
escalation if the X server is running privileged.


For Debian 9 stretch, these problems have been fixed in version
2:1.19.2-1+deb9u9.

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: 2:1.19.2-1+deb9u9
CVE ID: CVE-2021-4008 CVE-2021-4009 CVE-2021-4011

Topics%20covered

Topics Covered

security advisory security update debian privilege escalation input validation xorg-server

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