| Name | CVE-2019-12855 |
| Description | In 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | ELA-896-1 |
| Debian Bugs | 930626 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| twisted (PTS) | jessie, jessie (lts) | 14.0.2-3+deb8u6 | fixed |
| stretch (security) | 16.6.0-2+deb9u3 | vulnerable |
| stretch (lts), stretch | 16.6.0-2+deb9u5 | fixed |
| buster, buster (lts) | 18.9.0-3+deb10u3 | fixed |
| buster (security) | 18.9.0-3+deb10u2 | fixed |
| bullseye | 20.3.0-7+deb11u1 | fixed |
| bullseye (security) | 20.3.0-7+deb11u2 | fixed |
| bookworm (security), bookworm | 22.4.0-4+deb12u1 | fixed |
| sid, trixie | 24.11.0-1 | fixed |
The information below is based on the following data on fixed versions.
Notes
[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