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Ubuntu 25.04: GNU C Library Critical Denial of Service CVE-2025-8058

ubuntu
Calendar Grey September 22, 2025
Dist Ubuntu Esm H88
A critical flaw in the GNU C Library has emerged, potentially resulting in system failures or unauthorized code execution on Ubuntu systems, mandating immediate security patches.
GNU C Library could be made to crash or run programs if it received specially crafted input.

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.

Topics%20covered

Topics Covered

security advisory denial of service critical Ubuntu glibc software issue

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

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7760-1

Topics%20covered

Topics Covered

security advisory denial of service critical Ubuntu glibc software issue

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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