CVE-2011-5000

NameCVE-2011-5000
DescriptionThe 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.
SourceCVE (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 PackageReleaseVersionStatus
openssh (PTS)jessie, jessie (lts)1:6.7p1-5+deb8u10fixed
stretch (security)1:7.4p1-10+deb9u6fixed
stretch (lts), stretch1:7.4p1-10+deb9u9fixed
buster (security), buster, buster (lts)1:7.9p1-10+deb10u4fixed
bullseye (security), bullseye1:8.4p1-5+deb11u3fixed
bookworm (security), bookworm1:9.2p1-2+deb12u3fixed
sid, trixie1:9.9p1-3fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
opensshsourcesqueeze1:5.5p1-6+squeeze4
opensshsource(unstable)1:5.9p1-1

Notes

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

Search for package or bug name: Reporting problems