CVE-2006-5051

NameCVE-2006-5051
DescriptionSignal handler race condition in OpenSSH before 4.4 allows remote attackers to cause a denial of service (crash), and possibly execute arbitrary code if GSSAPI authentication is enabled, via unspecified vectors that lead to a double-free.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesCVE-2008-4109, DSA-1189-1, DSA-1212, DSA-1638-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
openssh (PTS)buster1:7.9p1-10+deb10u2fixed
buster (security)1:7.9p1-10+deb10u4fixed
bullseye (security), bullseye1:8.4p1-5+deb11u3fixed
bookworm, bookworm (security)1:9.2p1-2+deb12u2fixed
sid, trixie1:9.7p1-5fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
opensshsourcesarge1:3.8.1p1-8.sarge.6DSA-1212
opensshsourceetch1:4.3p2-9etch3DSA-1638-1
opensshsource(unstable)1:4.6p1-1low
openssh-krb5sourcesarge3.8.1p1-7sarge1DSA-1189-1
openssh-krb5source(unstable)(unfixed)high

Notes

From my analysis only openssh with Kerberos support should be vulnerable
However, we'll fix openssh as well just to make sure

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