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Debian Security Advisory 5380-1

Debian Security Advisory 5380-1
Posted Mar 30, 2023
Authored by Debian | Site debian.org

Debian Linux Security Advisory 5380-1 - Jan-Niklas Sohn discovered that a user-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.

tags | advisory, root
systems | linux, debian
advisories | CVE-2023-1393
SHA-256 | 013d8199c96a3b7dd39b9bfe5fe4ea2bc5461ae2364515cecde74828ad3a6eb2

Debian Security Advisory 5380-1

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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

- -------------------------------------------------------------------------
Debian Security Advisory DSA-5380-1 security@debian.org
https://www.debian.org/security/ Salvatore Bonaccorso
March 29, 2023 https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package : xorg-server
CVE ID : CVE-2023-1393

Jan-Niklas Sohn discovered that a user-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 the stable distribution (bullseye), this problem has been fixed in
version 2:1.20.11-1+deb11u6.

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 Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org
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