| Package | xorg-server |
|---|---|
| Version | 2:1.16.4-1+deb8u11 (jessie), 2:1.19.2-1+deb9u14 (stretch) |
| Related CVEs | CVE-2023-1393 |
Jan-Niklas Sohn discovered that a use-after-free flaw in the Composite extension of the X.org X server may result in privilege escalation if the X server is running under the root user.
For Debian 8 jessie, these problems have been fixed in version 2:1.16.4-1+deb8u11.
For Debian 9 stretch, these problems have been fixed in version 2:1.19.2-1+deb9u14.
We recommend that you upgrade your xorg-server packages.
Further information about Extended LTS security advisories can be found in the dedicated section of our website.