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Debian 11: DLA-4143-1 Critical: glibc Buffer Overflow Security Advisory

debian lts
Calendar Grey April 30, 2025
Dist Debian Esm H88
Enhance glibc in Debian LTS to resolve a vital buffer overflow vulnerability detected within the assert() function's implementation.
A flaw was discovered in the implementation of the assert() function in the GNU C Library, the C standard library implementation used by Debian
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Topics Covered

security advisory buffer overflow critical debian glibc C library

Summary

When the assertion fails, the implementation does not allocate enough
space for the assertion failure message string and size information,
which may lead to a buffer overflow if the message string size aligns to
page size.

For Debian 11 bullseye, this problem has been fixed in version
2.31-13+deb11u12.

We recommend that you upgrade your glibc packages.

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

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


Severity
critical
Lowest
Low
Medium
High
Critical

Package: glibc
Version: 2.31-13+deb11u12
CVE ID: CVE-2025-0395

Topics%20covered

Topics Covered

security advisory buffer overflow critical debian glibc C library

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