CVE-2007-4752

NameCVE-2007-4752
Descriptionssh in OpenSSH before 4.7 does not properly handle when an untrusted cookie cannot be created and uses a trusted X11 cookie instead, which allows attackers to violate intended policy and gain privileges by causing an X client to be treated as trusted.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDSA-1576-1
Debian Bugs444738

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
trixie1:9.6p1-4fixed
sid1:9.7p1-2fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
opensshsourceetch1:4.3p2-9etch2DSA-1576-1
opensshsource(unstable)1:4.7p1-1low444738

Notes

[etch] - openssh <no-dsa> (minor issue in weak security measure)
[sarge] - openssh <no-dsa> (minor issue in weak security measure)
An exploit needs limited control over the machine running a
trusted X client, so this is only a slight privilege
escalation. The X Security extension is merely an afterthought
and is unlikely to provide strong security guarantees.

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