Vulnerability Description
In OpenSC pam_pkcs11 before 0.6.13, pam_sm_authenticate() wrongly returns PAM_IGNORE in many error situations (such as an error triggered by a smartcard before login), allowing authentication bypass.
CVSS Score
6.7
MEDIUM
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Related Weaknesses (CWE)
References
- https://github.com/OpenSC/pam_pkcs11/releases
- https://github.com/OpenSC/pam_pkcs11/security/advisories/GHSA-7mf6-rg36-qgch
- https://www.openwall.com/lists/oss-security/2025/02/06/3
- http://www.openwall.com/lists/oss-security/2025/02/06/3
- http://www.openwall.com/lists/oss-security/2025/02/06/7
FAQ
What is CVE-2025-24531?
CVE-2025-24531 is a vulnerability with a CVSS score of 6.7 (MEDIUM). In OpenSC pam_pkcs11 before 0.6.13, pam_sm_authenticate() wrongly returns PAM_IGNORE in many error situations (such as an error triggered by a smartcard before login), allowing authentication bypass.
How severe is CVE-2025-24531?
CVE-2025-24531 has been rated MEDIUM with a CVSS base score of 6.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-24531?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.