1. Ubuntu Security Notices
  2. USN-7541-1

USN-7541-1: GNU C Library vulnerability

Publication date

28 May 2025

Overview

GNU C Library could be made to crash or run programs if it processed specially crafted dynamically shared library.

Releases

Packages

Details

It was discovered that the GNU C Library incorrectly search LD_LIBRARY_PATH
to determine which library to load when statically linked setuid binary
calls dlopen. A local attacker could possibly use this issue to cause a
denial of service or execute arbitrary code.

It was discovered that the GNU C Library incorrectly search LD_LIBRARY_PATH
to determine which library to load when statically linked setuid binary
calls dlopen. A local attacker could possibly use this issue to cause a
denial of service or execute arbitrary code.

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
22.04 jammy libc6 –  2.35-0ubuntu3.10
20.04 focal libc6 –  2.31-0ubuntu9.18
18.04 bionic libc6 –  2.27-3ubuntu1.6+esm5  

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References

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