UBUNTU-CVE-2020-13962

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    UBUNTU-CVE-2020-13962

    Published: 9 Jun 2020Last Modified: 22 Apr 2026
    Upstream:
    CVE-2020-13962
    Aliases:
    USN-8076-1

    Summary:

    Details: Qt 5.12.2 through 5.14.2, as used in unofficial builds of Mumble 1.3.0 and other products, mishandles OpenSSL's error queue, which can cause a denial of service to QSslSocket users. Because errors leak in unrelated TLS sessions, an unrelated session may be disconnected when any handshake fails. (Mumble 1.3.1 is not affected, regardless of the Qt version.)

    References: https://ubuntu.com/security/CVE-2020-13962, https://github.com/mumble-voip/mumble/pull/4032, https://www.cve.org/CVERecord?id=CVE-2020-13962, https://ubuntu.com/security/notices/USN-8076-1

    Affected packages

    Package

    Name: qtbase-opensource-src

    Purl: pkg:deb/ubuntu/[email protected]+dfsg-0ubuntu2.1+esm3?arch=source&distro=esm-apps/focal

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -5.12.8+dfsg-0ubuntu2.1+esm3

    Affected versions

    5.12.4+dfsg-4ubuntu1
    5.12.5+dfsg-2
    5.12.5+dfsg-8
    5.12.5+dfsg-8build1
    5.12.5+dfsg-9build1
    5.12.8+dfsg-0ubuntu1
    5.12.8+dfsg-0ubuntu2.1
    5.12.8+dfsg-0ubuntu2.1+esm1
    5.12.8+dfsg-0ubuntu2.1+esm2

    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
    UBUNTU-CVE-2020-13962 | CVE-DB