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[USN-7760-1] GNU C Library vulnerability

Posted on 22 September 2025
Ubuntu Security

==========================================================================Ubuntu Security Notice USN-7760-1
September 22, 2025

glibc vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 25.04
- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS

Summary:

GNU C Library could be made to crash or run programs if it received
specially crafted input.

Software Description:
- glibc: GNU C Library

Details:

It was discovered that the GNU C Library incorrectly handled the regcomp
function when memory allocation failures occured. An attacker could use
this issue to cause applications to crash, leading to a denial of service,
or possibly execute arbitrary code.

Update instructions:

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

Ubuntu 25.04
libc6 2.41-6ubuntu1.2

Ubuntu 24.04 LTS
libc6 2.39-0ubuntu8.6

Ubuntu 22.04 LTS
libc6 2.35-0ubuntu3.11

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

References:
https://ubuntu.com/security/notices/USN-7760-1
CVE-2025-8058

Package Information:
https://launchpad.net/ubuntu/+source/glibc/2.41-6ubuntu1.2
https://launchpad.net/ubuntu/+source/glibc/2.39-0ubuntu8.6
https://launchpad.net/ubuntu/+source/glibc/2.35-0ubuntu3.11

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