CVE-2011-5000: OpenBSD OpenSSH

Low severity, CVSS 3.5. EPSS: 2.6% chance of exploitation in the next 30 days.

The ssh_gssapi_parse_ename function in gss-serv.c in OpenSSH 5.8 and earlier, when gssapi-with-mic authentication is enabled, allows remote authenticated users to cause a denial of service (memory consumption) via a large value in a certain length field. NOTE: there may be limited scenarios in which this issue is relevant.

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 2012-04-05. Last modified 2026-06-16.