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CVE-2019-12855

Status Candidate

Overview

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.

Related Files

Ubuntu Security Notice USN-4308-2
Posted Mar 30, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4308-2 - USN-4308-1 fixed several vulnerabilities in Twisted. This update provides the corresponding update for Ubuntu 14.04 ESM. it was discovered that Twisted incorrectly validated or sanitized certain URIs or HTTP methods. A remote attacker could use this issue to inject invalid characters and possibly perform header injection attacks. Various other issues were also addressed.

tags | advisory, remote, web, vulnerability
systems | linux, ubuntu
advisories | CVE-2019-12387, CVE-2019-12855, CVE-2020-10109
SHA-256 | 39bb858ec4921004263891b18b84c7e30cbaece7168ad65d0909bacbbf72c14e
Ubuntu Security Notice USN-4308-1
Posted Mar 19, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4308-1 - it was discovered that Twisted incorrectly validated or sanitized certain URIs or HTTP methods. A remote attacker could use this issue to inject invalid characters and possibly perform header injection attacks. It was discovered that Twisted incorrectly verified XMPP TLS certificates. A remote attacker could possibly use this issue to perform a man-in-the-middle attack and obtain sensitive information. Various other issues were also addressed.

tags | advisory, remote, web
systems | linux, ubuntu
advisories | CVE-2019-12387, CVE-2019-12855, CVE-2019-9515, CVE-2020-10109
SHA-256 | ffdb0ccca94ded3b06bc7f31916de1a632873a8b9417f51bc485880741f8a609
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