Description
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."
Metrics
CVSS 2.0 6.9/10
AV:L/AC:M/Au:N/C:C/I:C/A:CWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- http://c-skills.blogspot.com/2011/11/openpam-trickery.html
- http://openwall.com/lists/oss-security/2011/12/07/3
- http://openwall.com/lists/oss-security/2011/12/08/9
- http://openwall.com/lists/oss-security/2011/12/23/8
- http://openwall.com/lists/oss-security/2011/12/27/1
- http://openwall.com/lists/oss-security/2011/12/27/3
- http://openwall.com/lists/oss-security/2011/12/28/5
- http://openwall.com/lists/oss-security/2012/01/02/10
- http://openwall.com/lists/oss-security/2012/01/02/11
- https://exchange.xforce.ibmcloud.com/vulnerabilities/72230
- http://c-skills.blogspot.com/2011/11/openpam-trickery.html
- http://openwall.com/lists/oss-security/2011/12/07/3
- http://openwall.com/lists/oss-security/2011/12/08/9
- http://openwall.com/lists/oss-security/2011/12/23/8
- http://openwall.com/lists/oss-security/2011/12/27/1
- http://openwall.com/lists/oss-security/2011/12/27/3
- http://openwall.com/lists/oss-security/2011/12/28/5
- http://openwall.com/lists/oss-security/2012/01/02/10
- http://openwall.com/lists/oss-security/2012/01/02/11
- https://exchange.xforce.ibmcloud.com/vulnerabilities/72230
Timeline
- Published
- Jan 6, 2012
- Last modified
- Jun 16, 2026
- NVD status
- Modified