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SUSE Linux Micro 6.0: 2025:20132-1 moderate: pam_u2f authentication issue

suse
Calendar Grey June 4, 2025
Dist Suse Esm H88
This notification outlines a significant revision for pam_u2f on openSUSE, explaining the identified security concern and providing steps for patching.
* bsc#1233517 Cross-References: * CVE-2025-23013

Summary

## This update for pam_u2f fixes the following issues: * update to 1.3.2: * Relax authfile permission check to a warning instead of an error to prevent a breaking change locking existing users out of their systems. * update to 1.3.1: * CVE-2025-23013: Fixed problematic PAM_IGNORE return values in `pam_sm_authenticate()`(bsc#1233517). * Changed return value when nouserok is enabled and the user has no credentials, PAM_IGNORE is used instead of PAM_SUCCESS. * Hardened checks of authfile permissions. * Hardened checks for nouserok. * Improved debug messages. * Improved documentation. ## 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: * SUSE Linux Micro 6.0

Topics%20covered

Topics Covered

security advisory moderate software update authentication issue SUSE pam_u2f

References

* bsc#1233517

Cross-

* 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:

* SUSE Linux Micro 6.0

An update that solves one vulnerability can now be installed.

##

* https://www.suse.com/security/cve/CVE-2025-23013.html

Announcement ID: SUSE-SU-2025:20132-1
Release Date: 2025-03-04T08:28:30Z
Rating: moderate

Topics%20covered

Topics Covered

security advisory moderate software update authentication issue SUSE pam_u2f

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