https://seclists.org/oss-sec/2025/q1/27: pam-u2f: problematic PAM_IGNOturn values in pam_sm_authenticate() (CVE-2025-23013)
Published Jan 16, 2025
·Updated
Affected Software
1 affected component
Linux-PAM Linux PAM
Frequently Asked Questions
1
What is the severity of CVE-2025-23013?
CVE-2025-23013 is considered a medium severity vulnerability due to its potential impact on authentication processes.
2
How does CVE-2025-23013 affect authentication in Linux-PAM?
CVE-2025-23013 affects the pam_sm_authenticate() function by mishandling PAM_IGNORE values, which can lead to improper authentication behavior.
3
What systems are affected by CVE-2025-23013?
CVE-2025-23013 affects systems using the Linux PAM framework, particularly those implementing the pam-u2f module.
4
How do I fix CVE-2025-23013?
To fix CVE-2025-23013, update the Linux-PAM package to the latest version that addresses this vulnerability.
5
Is there a workaround for CVE-2025-23013 until a fix is applied?
As a temporary workaround for CVE-2025-23013, consider disabling the pam-u2f module until an official fix is available.