CVE-2011-5000

Name	CVE-2011-5000
Description	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.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
openssh (PTS)	buster	1:7.9p1-10+deb10u2	fixed
	buster (security)	1:7.9p1-10+deb10u4	fixed
	bullseye (security), bullseye	1:8.4p1-5+deb11u3	fixed
	bookworm, bookworm (security)	1:9.2p1-2+deb12u2	fixed
	trixie	1:9.6p1-4	fixed
	sid	1:9.7p1-4	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
openssh	source	squeeze	1:5.5p1-6+squeeze4
openssh	source	(unstable)	1:5.9p1-1

looking at the code an additional integer overflow check was added in at least 5.9