==========================================================================
Ubuntu Security Notice USN-7536-2
June 16, 2025

cifs-utils regression
==========================================================================

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

- Ubuntu 25.04
- Ubuntu 24.10
- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS

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

Package Information:
   https://launchpad.net/ubuntu/+source/cifs-utils/2:7.2-2ubuntu0.1
   https://launchpad.net/ubuntu/+source/cifs-utils/2:7.0-2.1ubuntu0.2
   https://launchpad.net/ubuntu/+source/cifs-utils/2:7.0-2ubuntu0.2
   https://launchpad.net/ubuntu/+source/cifs-utils/2:6.14-1ubuntu0.3
   https://launchpad.net/ubuntu/+source/cifs-utils/2:6.9-1ubuntu0.4