UBUNTU-CVE-2020-12460

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    UBUNTU-CVE-2020-12460

    Published: 27 Jul 2020Last Modified: 22 Apr 2026
    Upstream:
    CVE-2020-12460
    Aliases:
    USN-6356-1

    Summary:

    Details: OpenDMARC through 1.3.2 and 1.4.x through 1.4.0-Beta1 has improper null termination in the function opendmarc_xml_parse that can result in a one-byte heap overflow in opendmarc_xml when parsing a specially crafted DMARC aggregate report. This can cause remote memory corruption when a '\0' byte overwrites the heap metadata of the next chunk and its PREV_INUSE flag.

    References: https://ubuntu.com/security/CVE-2020-12460, https://github.com/trusteddomainproject/OpenDMARC/issues/64, https://sourceforge.net/projects/opendmarc/, https://ubuntu.com/security/notices/USN-6356-1, https://www.cve.org/CVERecord?id=CVE-2020-12460

    Affected packages

    Package

    Name: opendmarc

    Purl: pkg:deb/ubuntu/[email protected]+dfsg-3ubuntu0.1~esm1?arch=source&distro=esm-apps/xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.3.1+dfsg-3ubuntu0.1~esm1

    Affected versions

    1.3.1+dfsg-2
    1.3.1+dfsg-3

    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-2020-12460 | CVE-DB