[SECURITY] [DLA 2869-1] xorg-server security update
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Debian LTS Advisory DLA-2869-1 debian-lts@lists.debian.org
https://www.debian.org/lts/security/ Thorsten Alteholz
December 29, 2021 https://wiki.debian.org/LTS
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Package : xorg-server
Version : 2:1.19.2-1+deb9u9
CVE ID : CVE-2021-4008 CVE-2021-4009 CVE-2021-4011
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/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
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