CVE-2009-0887 Information

Description

Integer signedness error in the _pam_StrTok function in libpam/pam_misc.c in Linux-PAM (aka pam) 1.0.3 and earlier when a configuration file contains non-ASCII usernames might allow remote attackers to cause a denial of service and might allow remote authenticated users to obtain login access with a different user’s non-ASCII username via a login attempt.

Reference

http://openwall.com/lists/oss-security/2009/03/05/1 http://pam.cvs.sourceforge.net/viewvc/pam/Linux-PAM/libpam/pam_misc.c?r1=1.9&r2=1.10&view=patch http://pam.cvs.sourceforge.net/viewvc/pam/Linux-PAM/libpam/pam_misc.c?view=log http://secunia.com/advisories/34733 http://www.mandriva.com/security/advisories?name=MDVSA-2009:077 http://www.securityfocus.com/bid/34010 https://exchange.xforce.ibmcloud.com/vulnerabilities/49110 https://www.redhat.com/archives/fedora-package-announce/2009-April/msg00398.html https://www.redhat.com/archives/fedora-package-announce/2009-April/msg00420.html