CVE-2019-12855
HIGHTwisted < 19.2.1 - Improper Certificate Validation in XMPP TLS Connections
Title source: llmDescription
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.
References (8)
Core 8
Core References
Vendor Advisory x_refsource_misc
https://twistedmatrix.com/trac/ticket/9561
Patch, Third Party Advisory x_refsource_misc
https://github.com/twisted/twisted/pull/1147
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PLTZDMFBNFSJMBXYJNGJHENJA4H2TSMZ/
Mailing List vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00013.html
Mailing List vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00028.html
Vendor Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/4308-2/
Vendor Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/4308-1/
Vendor Advisory x_refsource_misc
https://www.oracle.com/security-alerts/cpuapr2020.html
Scores
CVSS v3
7.4
EPSS
0.0182
EPSS Percentile
75.9%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Details
CWE
CWE-295
Status
published
Products (2)
pypi/Twisted
0 - 19.7.0rc1PyPI
twisted/twisted
< 19.2.1
Published
Jun 16, 2019
Tracked Since
Feb 18, 2026