Improper Certificate Validation Affecting py3-twisted package, versions <19.7.0-r0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-ALPINE319-PY3TWISTED-6111136
- published8 Dec 2023
- disclosed16 Jun 2019
Introduced: 16 Jun 2019
CVE-2019-12855 (opens in a new tab)How to fix?
Upgrade Alpine:3.19 py3-twisted to version 19.7.0-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream py3-twisted package and not the py3-twisted package as distributed by Alpine.
See How to fix? for Alpine:3.19 relevant fixed versions and status.
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
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PLTZDMFBNFSJMBXYJNGJHENJA4H2TSMZ/
- https://github.com/twisted/twisted/pull/1147
- https://twistedmatrix.com/trac/ticket/9561
- https://www.oracle.com/security-alerts/cpuapr2020.html
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00013.html
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00028.html
- https://usn.ubuntu.com/4308-1/
- https://usn.ubuntu.com/4308-2/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PLTZDMFBNFSJMBXYJNGJHENJA4H2TSMZ/