Ubuntu alert USN-7580-1 (pam)

From:
             
 
Marc Deslauriers <marc.deslauriers@canonical.com>
To:
             
 
"ubuntu-security-announce@lists.ubuntu.com" <ubuntu-security-announce@lists.ubuntu.com>
Subject:
             
 
[USN-7580-1] PAM vulnerability
Date:
             
 
Wed, 18 Jun 2025 14:16:14 -0400
Message-ID:
             
 
<0972680a-5e70-4c86-80e9-20fbd10f4b5d@canonical.com>
==========================================================================
Ubuntu Security Notice USN-7580-1
June 18, 2025

pam vulnerability
==========================================================================

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

Summary:

PAM could be made to run programs as an administrator.

Software Description:
- pam: Pluggable Authentication Modules

Details:

Olivier BAL-PETRE discovered that the PAM pam_namespace module incorrectly
handled user-controlled paths. In environments where pam_namespace is used,
a local attacker could possibly use this issue to escalate their privileges
to root.

Update instructions:

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

Ubuntu 25.04
   libpam-modules                  1.5.3-7ubuntu4.3

Ubuntu 24.10
   libpam-modules                  1.5.3-7ubuntu2.3

Ubuntu 24.04 LTS
   libpam-modules                  1.5.3-5ubuntu5.4

Ubuntu 22.04 LTS
   libpam-modules                  1.4.0-11ubuntu2.6

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

References:
   https://ubuntu.com/security/notices/USN-7580-1
   CVE-2025-6020

Package Information:
   https://launchpad.net/ubuntu/+source/pam/1.5.3-7ubuntu4.3
   https://launchpad.net/ubuntu/+source/pam/1.5.3-7ubuntu2.3
   https://launchpad.net/ubuntu/+source/pam/1.5.3-5ubuntu5.4
   https://launchpad.net/ubuntu/+source/pam/1.4.0-11ubuntu2.6



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