Vulnerability in Twisted
CVE-2019-12855
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.
Vulnerability class: Improper Certificate Validation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.4 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.018 (78.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 78.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000
Affected products
Weakness classification (CWE)
References
- twistedmatrix.com/trac/ticket/9561 (Vendor Advisory)
- github.com/twisted/twisted/pull/1147 (Patch, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2019-09/msg00013.html (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2019-09/msg00028.html (vendor-advisory)
- usn.ubuntu.com/4308-2/ (vendor-advisory)
- usn.ubuntu.com/4308-1/ (vendor-advisory)
- www.oracle.com/security-alerts/cpuapr2020.html
Frequently asked questions
- What is CVE-2019-12855?
- CVE-2019-12855 is a high-severity vulnerability in Twisted, classified under Improper Certificate Validation. CVSS score: 7.4/10. Published 2019-06-16.
- How severe is CVE-2019-12855?
- High severity. CVSS v3 base score is 7.4 out of 10.