CVE catalog
CVE-2011-4120
yubico-pam: CVE-2011-4120
- Severity
- Medium
- Published
- Source
- [NVD] · [CVE record]
- EPSS
- 2.02% · Oct 25, 2026
Yubico PAM Module before 2.10 performed user authentication when 'use_first_pass' PAM configuration option was not used and the module was configured as 'sufficient' in the PAM configuration. A remote attacker could use this flaw to circumvent common authentication process and obtain access to the account in question by providing a NULL value (pressing Ctrl-D keyboard sequence) as the password string.
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 | yubico-pam | sid | 2.27-3 | fixed |
| Debian | yubico-pam | forky | 2.27-3 | fixed |
| Debian | yubico-pam | trixie | 2.27-1 | fixed |
| Debian | yubico-pam | bookworm | 2.26-1.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | yubico-pam | source | sid | 2.10-1 | not yet assigned | Not reported | Not reported |
| Debian | yubico-pam | source | forky | 2.10-1 | not yet assigned | Not reported | Not reported |
| Debian | yubico-pam | source | trixie | 2.10-1 | not yet assigned | Not reported | Not reported |
| Debian | yubico-pam | source | bookworm | 2.10-1 | not yet assigned | Not reported | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libpam-yubico]Fixed
Source package: [yubico-pam]
Details (2)
2.26-1.1+b1· amd64 · bookwormFixed · Fixed:
2.10-1dsa · yubico-pam · debian · bookworm; dsa · yubico-pam · debian · 12
2.26-1.1+b1· arm64 · bookwormFixed · Fixed:
2.10-1dsa · yubico-pam · debian · bookworm; dsa · yubico-pam · debian · 12
[Debian 13 (Trixie)]
- [libpam-yubico]Fixed
Source package: [yubico-pam]
Details (2)
2.27-1+b1· amd64 · trixieFixed · Fixed:
2.10-1dsa · yubico-pam · debian · 13
2.27-1+b2· arm64 · trixieFixed · Fixed:
2.10-1dsa · yubico-pam · debian · 13
Observed: