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Ubuntu 25.04: USN-7536-2 critical: cifs-utils regression

ubuntu
Calendar Grey June 16, 2025
Dist Ubuntu Esm H88
Ubuntu Security Update USN-7536-2 addresses an issue in cifs-utils that impacts various Ubuntu versions.
USN-7536-1 introduced a regression in cifs-utils.

Summary

USN-7536-1 introduced a regression in cifs-utils.

Software Description:

- cifs-utils: Common Internet File System utilities

Details:

USN-7536-1 fixed vulnerabilities in cifs-utils. This update introduced a

regression in certain environments. This update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

It was discovered that cifs-utils incorrectly handled namespaces when

obtaining Kerberos credentials. An attacker could possibly use this issue

to obtain sensitive information.

Update Instructions

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

Ubuntu 25.04
   cifs-utils                      2:7.2-2ubuntu0.1

Ubuntu 24.10
   cifs-utils                      2:7.0-2.1ubuntu0.2

Ubuntu 24.04 LTS
   cifs-utils                      2:7.0-2ubuntu0.2

Ubuntu 22.04 LTS
   cifs-utils                      2:6.14-1ubuntu0.3

Ubuntu 20.04 LTS
   cifs-utils                      2:6.9-1ubuntu0.4

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

References

https://ubuntu.com/security/notices/USN-7536-2

https://ubuntu.com/security/notices/USN-7536-1

https://bugs.launchpad.net/ubuntu/+source/cifs-utils/+bug/2112614 https://bugs.launchpad.net/ubuntu/+source/cifs-utils/+bug/2113906

Severity
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Ubuntu Security Notice USN-7536-2

Package Information

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