# Security update for pam_u2f

Announcement ID: SUSE-SU-2025:0167-1  
Release Date: 2025-01-17T16:09:57Z  
Rating: important  
References:

  * bsc#1233517
  * bsc#1235961

  
Cross-References:

  * CVE-2025-23013

  
CVSS scores:

  * CVE-2025-23013 ( SUSE ):  7.3
    CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
  * CVE-2025-23013 ( SUSE ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2025-23013 ( NVD ):  7.3
    CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

  
Affected Products:

  * Basesystem Module 15-SP6
  * openSUSE Leap 15.6
  * SUSE Linux Enterprise Desktop 15 SP6
  * SUSE Linux Enterprise Real Time 15 SP6
  * SUSE Linux Enterprise Server 15 SP6
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6

  
  
An update that solves one vulnerability and has one security fix can now be
installed.

## Description:

This update for pam_u2f fixes the following issues:

  * CVE-2025-23013: Fixed problematic PAM_IGNORE return values in
    `pam_sm_authenticate()` (bsc#1233517)

## Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like
YaST online_update or "zypper patch".  
Alternatively you can run the command listed for your product:

  * openSUSE Leap 15.6  
    zypper in -t patch SUSE-2025-167=1 openSUSE-SLE-15.6-2025-167=1

  * Basesystem Module 15-SP6  
    zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP6-2025-167=1

## Package List:

  * openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64 i586)
    * pam_u2f-debugsource-1.2.0-150600.10.5.1
    * pam_u2f-1.2.0-150600.10.5.1
    * pam_u2f-debuginfo-1.2.0-150600.10.5.1
  * Basesystem Module 15-SP6 (aarch64 ppc64le s390x x86_64)
    * pam_u2f-debugsource-1.2.0-150600.10.5.1
    * pam_u2f-1.2.0-150600.10.5.1
    * pam_u2f-debuginfo-1.2.0-150600.10.5.1

## References:

  * https://www.suse.com/security/cve/CVE-2025-23013.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1233517
  * https://bugzilla.suse.com/show_bug.cgi?id=1235961