The pam_env module in Linux-PAM (aka pam) 1.1.2 and earlier reads the .pam_environment file in a user’s home directory, which might allow local users to run programs with an unintended environment by executing a program that relies on the pam_env PAM check.
openwall.com/lists/oss-security/2010/09/27/7
pam.cvs.sourceforge.net/viewvc/pam/Linux-PAM/modules/pam_env/pam_env.8.xml?r1=1.7&r2=1.8
pam.cvs.sourceforge.net/viewvc/pam/Linux-PAM/modules/pam_env/pam_env.c?r1=1.22&r2=1.23
secunia.com/advisories/49711
security.gentoo.org/glsa/glsa-201206-31.xml
www.securityfocus.com/bid/46046
bugzilla.redhat.com/show_bug.cgi?id=641335
exchange.xforce.ibmcloud.com/vulnerabilities/65037