[SECURITY] [DLA 3782-1] util-linux security update

Debian LTS Advisory DLA-3782-1 [email protected]
https://www.debian.org/lts/security/ Guilhem Moulin
April 07, 2024 https://wiki.debian.org/LTS

Package : util-linux
Version : 2.33.1-0.1+deb10u1
CVE ID : CVE-2021-37600 CVE-2024-28085
Debian Bug : 826596 991619 1067849

CVE-2024-28085

Skyler Ferrante discovered that the wall(1) utility found in
util-linux, a collection of system utilities for Linux, does not
filter escape sequences from command line arguments.  This allows
unprivileged local users to put arbitrary text on other users
terminals if mesg is set to ‘y’ and the wall executable is setgid,
which could lead to information disclosure.

With this update the wall executable is no longer installed setgid
tty.

CVE-2021-37600

Kihong Heo found an integer overflow which can potentially lead to
buffer overflow if an attacker were able to use system resources in
a way that leads to a large number in the /proc/sysvipc/sem file.
NOTE: this is issue is unexploitable in GNU C Library environments,
and possibly in all realistic environments.

For Debian 10 buster, these problems have been fixed in version
2.33.1-0.1+deb10u1.

We recommend that you upgrade your util-linux packages.

For the detailed security status of util-linux please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/util-linux

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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