PRIOn knowledge basePRION:CVE-2011-5054Design/Logic Flaw
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.”
References
openwall.com/lists/oss-security/2011/12/07/3
openwall.com/lists/oss-security/2011/12/08/9
openwall.com/lists/oss-security/2011/12/23/8
openwall.com/lists/oss-security/2011/12/27/1
openwall.com/lists/oss-security/2011/12/27/3
openwall.com/lists/oss-security/2011/12/28/5
openwall.com/lists/oss-security/2012/01/02/10
openwall.com/lists/oss-security/2012/01/02/11
c-skills.blogspot.com/2011/11/openpam-trickery.html
exchange.xforce.ibmcloud.com/vulnerabilities/72230
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