DEBIAN-CVE-2026-120247

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    DEBIAN-CVE-2026-120247

    Published: 1 Nov 2026Last Modified: 1 Nov 2026
    Upstream:
    CVE-2026-120247

    Summary:

    Details: FFmpeg 2.3 through 9.0.2 contains a use of uninitialized resource vulnerability in the Huffyuv decoder that allows attackers to leak heap memory into decoded pixels via short packed-BGR bitstreams. Attackers can craft a Huffyuv BGR24/BGRA video whose entropy data ends early, causing decode_slice() to add uninitialized s->temp[0] bytes into output frames, exposing heap contents.

    References: https://security-tracker.debian.org/tracker/CVE-2026-120247

    Affected packages

    Package

    Name: ffmpeg

    Purl: pkg:deb/debian/ffmpeg?arch=source&distro=bookworm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    7:5.1.3-1
    7:5.1.3-2
    7:5.1.4-0+deb12u1
    7:5.1.5-0+deb12u1
    7:5.1.6-0+deb12u1
    7:5.1.7-0+deb12u1
    7:5.1.8-0+deb12u1
    7:5.1.9-0+deb12u1

    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