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Urgent: Ubuntu 25.04 USN-7634-2 Addresses Glibc Vulnerability Risks

ubuntu
Calendar Grey July 14, 2025
Dist Ubuntu Esm H88
Security flaws resolved in GNU C Library for versions 24.04 and 25.04 of Ubuntu; users recommended to implement updates.
Several security issues were fixed in GNU C Library.

Summary

Several security issues were fixed in GNU C Library.

Software Description:

- glibc: GNU C Library

Details:

It was discovered that the GNU C Library incorrectly handled the strcmp

implementation optimized for Power10 processors. This could cause

applications to crash, compute wrong results, or leak confidential

information. (CVE-2025-5702)

It was discovered that the GNU C Library incorrectly handled the strncmp

implementation optimized for Power10 processors. This could cause

applications to crash, compute wrong results, or leak confidential

information. This issue only affected Ubuntu 25.04. (CVE-2025-5745)

Topics%20covered

Topics Covered

security advisory critical Ubuntu glibc application crash data leak

Update Instructions

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

Ubuntu 25.04
  libc6                           2.41-6ubuntu1.1

Ubuntu 24.04 LTS
  libc6                           2.39-0ubuntu8.5

After a standard system update you need to reboot your computer to make all
the necessary changes.

References

https://ubuntu.com/security/notices/USN-7634-1

CVE-2025-5702, CVE-2025-5745

Severity
important
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7634-1

Topics%20covered

Topics Covered

security advisory critical Ubuntu glibc application crash data leak

Package Information

https://launchpad.net/ubuntu/+source/glibc/2.41-6ubuntu1.1
https://launchpad.net/ubuntu/+source/glibc/2.39-0ubuntu8.5

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