UBUNTU-CVE-2019-12855

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    UBUNTU-CVE-2019-12855

    Published: 16 Jun 2019Last Modified: 4 Feb 2026
    Upstream:
    CVE-2019-12855

    Summary:

    Details: 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://ubuntu.com/security/CVE-2019-12855, https://github.com/twisted/twisted/pull/1147, https://ubuntu.com/security/notices/USN-4308-1, https://ubuntu.com/security/notices/USN-4308-2, https://www.cve.org/CVERecord?id=CVE-2019-12855

    Affected packages

    Package

    Name: twisted

    Purl: pkg:deb/ubuntu/[email protected]+esm1?arch=source&distro=trusty/esm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -13.2.0-1ubuntu1.2+esm1

    Affected versions

    13.0.0-1ubuntu1

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High