MGASA-2021-0226

    Dashboard / Vulnerabilities / MGASA-2021-0226

    MGASA-2021-0226

    Published: 8 Jun 2021Last Modified: 16 Apr 2026
    Upstream:
    CVE-2021-3405

    Summary: Updated libebml packages fix security vulnerabilities

    Details: Updated libebml packages fix security vulnerabilities: Heap use-after-free when parsing malformed file. A flaw was found in libebml before 1.4.2. A heap overflow bug exists in the implementation of EbmlString::ReadData and EbmlUnicodeString::ReadData in libebml (CVE-2021-3405). The mkvtoolnix, libmatroska packages have been rebuilt for the updated libebml.

    References: https://advisories.mageia.org/MGASA-2021-0226.html, https://bugs.mageia.org/show_bug.cgi?id=28278, https://lists.fedoraproject.org/archives/list/[email protected]/thread/7COLX6WFFOI3RIOY2IOXWASU3QKAOWKO/, https://lists.fedoraproject.org/archives/list/[email protected]/thread/JNHQI6MDOECJ2HT5GCLEX2DMJFEOWPW7/, https://www.debian.org/lts/security/2021/dla-2629

    Affected packages

    Package

    Name: libebml

    Purl: pkg:rpm/mageia/libebml?arch=source&distro=mageia-7

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.4.2-1.mga7

    Affected versions

    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
    MGASA-2021-0226 | CVE-DB