OESA-2021-1303

    Dashboard / Vulnerabilities / OESA-2021-1303

    OESA-2021-1303

    Published: 6 Aug 2021Last Modified: 18 Aug 2026
    Upstream:
    CVE-2020-36430

    Summary: libass security update

    Details: libass is a portable subtitle renderer for the ASS/SSA (Advanced Substation Alpha/Substation Alpha) subtitle format. It is mostly compatible with VSFilter. Security Fix(es): libass 0.15.x before 0.15.1 has a heap-based buffer overflow in decode_chars (called from decode_font and process_text) because the wrong integer data type is used for subtraction.(CVE-2020-36430)

    References: https://openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1303, https://nvd.nist.gov/vuln/detail/CVE-2020-36430

    Affected packages

    Package

    Name: libass

    Purl: pkg:rpm/openEuler/libass&distro=openEuler-20.03-LTS-SP2

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -0.15.0-2.oe1

    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
    OESA-2021-1303 | CVE-DB