|Bugzilla:||746620: CVE-2011-3149 pam (pam_env): Infinite loop by expanding certain arguments|
The MITRE CVE dictionary describes this issue as:
The _expand_arg function in the pam_env module (modules/pam_env/pam_env.c) in Linux-PAM (aka pam) before 1.1.5 does not properly handle when environment variable expansion can overflow, which allows local users to cause a denial of service (CPU consumption).
This issue did not affect the versions of pam package as shipped with Red Hat Enterprise Linux 4 and 5.
CVSS v2 metrics
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Red Hat security errata
|Red Hat Enterprise Linux version 6 (pam)||RHSA-2013:0521||February 20, 2013|
Red Hat would like to thank Kees Cook of Google ChromeOS Team for reporting this issue.
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For clarification or corrections please contact the Red Hat Security Response Team.