CVE-2011-4327: OpenBSD OpenSSH

Medium severity, CVSS 5.5. EPSS: 0.4% chance of exploitation in the next 30 days.

ssh-keysign.c in ssh-keysign in OpenSSH before 5.8p2 on certain platforms executes ssh-rand-helper with unintended open file descriptors, which allows local users to obtain sensitive key information via the ptrace system call.

Affected products

• OpenBSD OpenSSH: up to and including 5.8; version 1.2 only; version 1.2.1 only; version 1.2.2 only; version 1.2.3 only; version 1.2.27 only; …

Published 2014-02-03. Last modified 2026-06-16.