==========================================================================
Ubuntu Security Notice USN-6588-1
January 17, 2024

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

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

- Ubuntu 23.10
- Ubuntu 23.04
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS

Summary:

PAM could be made to stop responding if it opened a specially crafted file.

Software Description:
- pam: Pluggable Authentication Modules

Details:

Matthias Gerstner discovered that the PAM pam_namespace module incorrectly
handled special files when performing directory checks. A local attacker
could possibly use this issue to cause PAM to stop responding, resulting in
a denial of service.

Update instructions:

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

Ubuntu 23.10:
   libpam-modules                  1.5.2-6ubuntu1.1

Ubuntu 23.04:
   libpam-modules                  1.5.2-5ubuntu1.1

Ubuntu 22.04 LTS:
   libpam-modules                  1.4.0-11ubuntu2.4

Ubuntu 20.04 LTS:
   libpam-modules                  1.3.1-5ubuntu4.7

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

References:
   https://ubuntu.com/security/notices/USN-6588-1
   CVE-2024-22365

Package Information:
   https://launchpad.net/ubuntu/+source/pam/1.5.2-6ubuntu1.1
   https://launchpad.net/ubuntu/+source/pam/1.5.2-5ubuntu1.1
   https://launchpad.net/ubuntu/+source/pam/1.4.0-11ubuntu2.4
   https://launchpad.net/ubuntu/+source/pam/1.3.1-5ubuntu4.7

Ubuntu 6588-1: PAM vulnerability

January 17, 2024
PAM could be made to stop responding if it opened a specially crafted file.

Summary

A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 23.10 - Ubuntu 23.04 - Ubuntu 22.04 LTS - Ubuntu 20.04 LTS Summary: PAM could be made to stop responding if it opened a specially crafted file. Software Description: - pam: Pluggable Authentication Modules Details: Matthias Gerstner discovered that the PAM pam_namespace module incorrectly handled special files when performing directory checks. A local attacker could possibly use this issue to cause PAM to stop responding, resulting in a denial of service.

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 23.10: libpam-modules 1.5.2-6ubuntu1.1 Ubuntu 23.04: libpam-modules 1.5.2-5ubuntu1.1 Ubuntu 22.04 LTS: libpam-modules 1.4.0-11ubuntu2.4 Ubuntu 20.04 LTS: libpam-modules 1.3.1-5ubuntu4.7 In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-6588-1

CVE-2024-22365

Severity
Ubuntu Security Notice USN-6588-1

Package Information

https://launchpad.net/ubuntu/+source/pam/1.5.2-6ubuntu1.1 https://launchpad.net/ubuntu/+source/pam/1.5.2-5ubuntu1.1 https://launchpad.net/ubuntu/+source/pam/1.4.0-11ubuntu2.4 https://launchpad.net/ubuntu/+source/pam/1.3.1-5ubuntu4.7

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