UBUNTU-CVE-2018-20431

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    UBUNTU-CVE-2018-20431

    Published: 24 Dec 2018Last Modified: 22 Apr 2026
    Upstream:
    CVE-2018-20431
    Aliases:
    USN-4641-1

    Summary:

    Details: GNU Libextractor through 1.8 has a NULL Pointer Dereference vulnerability in the function process_metadata() in plugins/ole2_extractor.c.

    References: https://ubuntu.com/security/CVE-2018-20431, https://gnunet.org/bugs/view.php?id=5494, https://gnunet.org/git/libextractor.git/commit/?id=489c4a540bb2c4744471441425b8932b97a153e7, https://gnunet.org/git/libextractor.git/tree/ChangeLog, https://lists.debian.org/debian-lts-announce/2018/12/msg00015.html, https://ubuntu.com/security/notices/USN-4641-1, https://www.cve.org/CVERecord?id=CVE-2018-20431

    Affected packages

    Package

    Name: libextractor

    Purl: pkg:deb/ubuntu/libextractor@1:1.3-1ubuntu0.1~esm1?arch=source&distro=trusty/esm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1:1.3-1ubuntu0.1~esm1

    Affected versions

    1:1.1-1ubuntu1

    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