CVE-2019-12855

NameCVE-2019-12855
DescriptionIn words.protocols.jabber.xmlstream in Twisted through 19.2.1, XMPP support did not verify certificates when used with TLS, allowing an attacker to MITM connections.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severitymedium (attack range: remote)
Debian Bugs930626

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
twisted (PTS)jessie14.0.2-3vulnerable
stretch16.6.0-2vulnerable
bullseye, sid, buster18.9.0-3vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
twistedsource(unstable)(unfixed)medium930626

Notes

[buster] - twisted <no-dsa> (Minor issue)
[stretch] - twisted <no-dsa> (Minor issue)
[jessie] - twisted <no-dsa> (Minor issue)
https://github.com/twisted/twisted/pull/1147
https://twistedmatrix.com/trac/ticket/9561

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