CVE-2011-5054 json
kcheckpass passes a user-supplied argument to the pam_start function, often within a setuid environment, which allows local users to invoke…
published 2012-01-06 14 y ago modified 2026-06-16 4 mo ago also EUVD-2011-4957
- cvss
- 6.9
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 25%
- public exploits
- 0
- none known
Summary
kcheckpass passes a user-supplied argument to the pam_start function, often within a setuid environment, which allows local users to invoke any configured PAM stack, and possibly trigger unintended side effects, via an arbitrary valid PAM service name, a different vulnerability than CVE-2011-4122. NOTE: the vendor indicates that the possibility of resultant privilege escalation may be "a bit far-fetched."
Exploit prediction
0.33% chance of exploitation in the next 30 days, higher than 25% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 6.9 | AV:L/AC:M/Au:N/C:C/I:C/A:C |
Classification
- Weakness
-
- CWE-287 Improper Authentication
References
-
exchange.xforce.ibmcloud.com
/vulnerabilities/72230
vdb-entry
-
openwall.com
/lists/oss-security/2011/12/07/3
mailing-list
-
openwall.com
/lists/oss-security/2011/12/28/5
mailing-list
-
openwall.com
/lists/oss-security/2011/12/27/3
mailing-list
-
openwall.com
/lists/oss-security/2011/12/23/8
mailing-list
-
openwall.com
/lists/oss-security/2012/01/02/11
mailing-list
-
openwall.com
/lists/oss-security/2011/12/27/1
mailing-list
- c-skills.blogspot.com /2011/11/openpam-trickery.html
-
openwall.com
/lists/oss-security/2011/12/08/9
mailing-list
-
openwall.com
/lists/oss-security/2012/01/02/10
mailing-list
Sources
- CVE List CVE-2011-5054
- NVD CVE-2011-5054
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.