CVE catalog

CVE-2025-24531

PAM-PKCS#11 vulnerabilities

Severity: Critical · CVSS 9.3CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Published: Feb 6, 2025, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 0.23% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	pam-pkcs11	sid	`0.6.14-1`	fixed
Debian	pam-pkcs11	forky	`0.6.14-1`	fixed
Debian	pam-pkcs11	trixie	`0.6.13-1`	fixed
Debian	pam-pkcs11	bookworm	`0.6.12-1+deb12u1`	fixed
Debian	pam-pkcs11	bookworm-security	`0.6.12-1+deb12u1`	fixed
Ubuntu	pam-pkcs11	noble	`0.6.12-2ubuntu0.24.04.1`	fixed
Ubuntu	libpam-pkcs11	noble	`0.6.12-2ubuntu0.24.04.1`	fixed
Suse	pam_pkcs11	linux micro 6.0	`0.6.12-2.1`	fixed
Suse	pam_pkcs11	linux micro 6.1	`0.6.12-slfo.1.1_3.1`	fixed
Ubuntu	pam-pkcs11	24.04	`0.6.12-1`	vulnerable
Ubuntu	pam-pkcs11	24.04	`0.6.12-2`	vulnerable
Ubuntu	pam-pkcs11	24.04	`0.6.12-2build2`	vulnerable
Ubuntu	pam-pkcs11	24.04	`0.6.12-2build3`	vulnerable
Ubuntu	pam-pkcs11	24.04	`0.6.12-2ubuntu0.24.04.1`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	pam-pkcs11	source	sid	`0.6.13-1`	not yet assigned	Not reported	[1095402]
Debian	pam-pkcs11	source	forky	`0.6.13-1`	not yet assigned	Not reported	[1095402]
Debian	pam-pkcs11	source	trixie	`0.6.13-1`	not yet assigned	Not reported	[1095402]
Debian	pam-pkcs11	source	bookworm	`0.6.12-1+deb12u1`	not yet assigned	Not reported	[1095402]
Ubuntu	pam-pkcs11	deb	noble	`0.6.12-2ubuntu0.24.04.1`	Not reported	Not reported	Not reported
Ubuntu	libpam-pkcs11	deb	noble	`0.6.12-2ubuntu0.24.04.1`	Not reported	Not reported	Not reported
Suse	pam_pkcs11	rpm	linux micro 6.0	`0.6.12-2.1`	Not reported	SUSE-SU-2025:20130-1	Not reported
Suse	pam_pkcs11	rpm	linux micro 6.1	`0.6.12-slfo.1.1_3.1`	Not reported	SUSE-SU-2025:20225-1	Not reported
Ubuntu	pam-pkcs11	deb	24.04	`0.6.12-2ubuntu0.24.04.1`	Not reported	UBUNTU-CVE-2025-24531	Not reported

[Debian bug #1095402]

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[libpam-pkcs11]Fixed
Source package: [pam-pkcs11]
Details (4)
- 0.6.12-1+deb12u1 · amd64 · bookworm
  Fixed · Fixed: 0.6.12-1+deb12u1
  usn · pam-pkcs11 · debian · bookworm; usn · pam-pkcs11 · debian · 12
- 0.6.12-1+deb12u1 · arm64 · bookworm
  Fixed · Fixed: 0.6.12-1+deb12u1
  usn · pam-pkcs11 · debian · bookworm; usn · pam-pkcs11 · debian · 12
- 0.6.12-1+deb12u1 · amd64 · bookworm-security
  Fixed · Fixed: 0.6.12-1+deb12u1
  usn · pam-pkcs11 · debian · bookworm; usn · pam-pkcs11 · debian · 12
- 0.6.12-1+deb12u1 · arm64 · bookworm-security
  Fixed · Fixed: 0.6.12-1+deb12u1
  usn · pam-pkcs11 · debian · bookworm; usn · pam-pkcs11 · debian · 12

[Debian 13 (Trixie)]

[libpam-pkcs11]Fixed
Source package: [pam-pkcs11]
Details (2)
- 0.6.13-1 · amd64 · trixie
  Fixed · Fixed: 0.6.13-1
  usn · pam-pkcs11 · debian · 13
- 0.6.13-1 · arm64 · trixie
  Fixed · Fixed: 0.6.13-1
  usn · pam-pkcs11 · debian · 13

Observed: Oct 26, 2026, 11:20:55 PM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX] · [Ubuntu Security Notices (USN)]