CVE-2009-1273: Andrew J.korty Pam SSH

Medium severity, CVSS 5.0. EPSS: 1.3% chance of exploitation in the next 30 days.

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.

Affected products

Published 2009-04-08. Last modified 2026-06-16.