CVE-2019-12855

Published: Jun 16, 2019Modified: Jun 17, 2026

7.4

Vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Exploitability: 2.2 / Impact: 5.2

Source: NVD

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.

Affected (1)

Products: Twisted: Twisted

Twisted

1 product

Twisted

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Twisted Twisted	Up to 19.2.1

Related CWEs

CWE-295

Improper Certificate Validation

The product does not validate, or incorrectly validates, a certificate.

References (16)

http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00013.html

Source: cve@mitre.org

http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00028.html

Source: cve@mitre.org

https://github.com/twisted/twisted/pull/1147

Source: cve@mitre.org

PatchThird Party Advisory

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PLTZDMFBNFSJMBXYJNGJHENJA4H2TSMZ/

Source: cve@mitre.org

https://twistedmatrix.com/trac/ticket/9561

Source: cve@mitre.org

Vendor Advisory

https://usn.ubuntu.com/4308-1/

Source: cve@mitre.org

https://usn.ubuntu.com/4308-2/

Source: cve@mitre.org

https://www.oracle.com/security-alerts/cpuapr2020.html

Source: cve@mitre.org

http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00013.html