CVE-2017-3204

NameCVE-2017-3204
DescriptionThe Go SSH library (x/crypto/ssh) by default does not verify host keys, facilitating man-in-the-middle attacks. Default behavior changed in commit e4e2799 to require explicitly registering a hostkey verification mechanism.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
NVD severitymedium (attack range: remote)
Debian Bugs859655

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
golang-go.crypto (PTS)jessie0.0~hg190-1vulnerable
buster, sid, stretch1:0.0~git20170407.0.55a552f+REALLY.0.0~git20161012.0.5f31782-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
golang-go.cryptosource(unstable)1:0.0~git20170407.0.55a552f+REALLY.0.0~git20161012.0.5f31782-1medium859655

Notes

[jessie] - golang-go.crypto <no-dsa> (In jessie no rdeps using SSH, that version doesn't even support host key validation)
https://github.com/golang/crypto/commit/e4e2799dd7aab89f583e1d898300d96367750991
https://github.com/golang/go/issues/19767

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