[SECURITY] [DLA 4306-1] pam security update
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Debian LTS Advisory DLA-4306-1 debian-lts@lists.debian.org
https://www.debian.org/lts/security/ Bastien Roucariès
September 21, 2025 https://wiki.debian.org/LTS
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Package : pam
Version : 1.4.0-9+deb11u2
CVE ID : CVE-2024-22365 CVE-2025-6020
Debian Bug : 1061097 1107919
Multiple vulnerabilities were found in PAM namespace module
used to configure private namespaces for user sessions.
CVE-2024-22365
An attackers can cause a denial of service
(blocked login process) via mkfifo because the
openat call (for protect_dir) lacks O_DIRECTORY.
CVE-2025-6020
pam_namespace may use access user-controlled paths
without proper protection, allowing local users to elevate
their privileges to root via multiple symlink attacks
and race conditions.
For Debian 11 bullseye, these problems have been fixed in version
1.4.0-9+deb11u2.
We recommend that you upgrade your pam packages.
For the detailed security status of pam please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/pam
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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