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[USN-7761-1] PAM vulnerability

Posted on 22 September 2025
Ubuntu Security

==========================================================================Ubuntu Security Notice USN-7761-1
September 22, 2025

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

- Ubuntu 25.04
- Ubuntu 24.04 LTS

Summary:

PAM could allow unintended access to network services.

Software Description:
- pam: Pluggable Authentication Modules

Details:

It was discovered that the PAM pam_access module incorrectly parsed
certain rules as hostnames. An attacker could possibly use this issue to
spoof hostnames and bypass access restrictions.

Update instructions:

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

Ubuntu 25.04
libpam-modules 1.5.3-7ubuntu4.4

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

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

References:
https://ubuntu.com/security/notices/USN-7761-1
CVE-2024-10963

Package Information:
https://launchpad.net/ubuntu/+source/pam/1.5.3-7ubuntu4.4
https://launchpad.net/ubuntu/+source/pam/1.5.3-5ubuntu5.5

--===============5418937136458457468==Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: OpenPGP digital signature

 

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