UBUNTU-CVE-2026-73473

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    UBUNTU-CVE-2026-73473

    Published: 6 Nov 2026Last Modified: 7 Nov 2026
    Upstream:
    CVE-2026-73473

    Summary:

    Details: A flaw was found in GStreamer gst-plugins-good (avidemux). In the subindex parser, missing validation of the entry count can cause excessive memory allocation and denial of service. Because avidemux is auto-plugged by playbin, decodebin, and gst-discoverer, opening or previewing a crafted AVI is sufficient to trigger the issue. Fixed upstream in gst-plugins-good 1.28.6 (GStreamer-SA-2026-0072).

    References: https://ubuntu.com/security/CVE-2026-73473, https://www.cve.org/CVERecord?id=CVE-2026-73473, https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/12231, https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/12241, https://gstreamer.freedesktop.org/security/sa-2026-0072.html, https://access.redhat.com/security/cve/CVE-2026-73473, https://bugzilla.redhat.com/show_bug.cgi?id=2514915

    Affected packages

    Package

    Name: gst-plugins-good1.0

    Purl: pkg:deb/ubuntu/gst-plugins-good1.0?arch=source&distro=esm-infra-legacy%2Fxenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    1.6.0-1ubuntu1
    1.6.1-1ubuntu1
    1.6.2-1ubuntu1

    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
    UBUNTU-CVE-2026-73473 | CVE-DB