CVE-2019-12855 Information

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.

CVSS Vector

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

Reference

http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00013.html http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00028.html https://github.com/twisted/twisted/pull/1147 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PLTZDMFBNFSJMBXYJNGJHENJA4H2TSMZ/ https://twistedmatrix.com/trac/ticket/9561 https://usn.ubuntu.com/4308-1/ https://usn.ubuntu.com/4308-2/ https://www.oracle.com/security-alerts/cpuapr2020.html

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

NONE

Base Severity

7.4