CVE-2009-1273 Information

Description

pam_ssh 1.92 and possibly other versions as used when PAM is compiled with USE=ssh generates different error messages depending on whether the username is valid or invalid which makes it easier for remote attackers to enumerate usernames.

Reference

http://bugs.gentoo.org/show_bug.cgi?id=263579 http://secunia.com/advisories/34536 http://secunia.com/advisories/34986 https://www.redhat.com/archives/fedora-package-announce/2009-May/msg00116.html https://www.redhat.com/archives/fedora-package-announce/2009-May/msg00145.html