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CVE-2026-53703

CVE-2026-53703 · Gstreamer1-plugins-ugly-free: gstreamer: out-of-bounds read in realmedia demuxer audio stream header parser

This page contains facts from public vulnerability sources. Check the original advisory before updating.

A vulnerability was found in the GStreamer RealMedia demuxer (gst-plugins-ugly). When processing a RealMedia (.rm) file, the demuxer parses MDPR (media properties) chunks to configure audio streams. For audio stream header versions 4 and 5, the parser reads fields such as codec type, packet size, sample rate, channel count, and extra codec data length from fixed offsets within the chunk without first checking that the chunk contains enough data. If a malicious file provides an MDPR chunk that is too small to contain a complete audio stream header, the parser reads beyond the end of the buffer. This can cause the application to crash. In some cases, bytes read past the buffer boundary may be incorporated into stream metadata, which could result in limited information disclosure.

CVSS 7.1 · High · EPSS 0.5% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • red hat enterprise linux 10

    Versions
    • ≥ 0:1.26.7-2.el10_2.1: Not affected (rpm)

    No fix published

  • red hat enterprise linux 10.0 extended update support

    Versions
    • ≥ 0:1.24.11-1.el10_0.2: Not affected (rpm)

    No fix published

  • red hat enterprise linux 9

    Versions
    • ≥ 0:1.22.12-6.el9_8.1: Not affected (rpm)

    No fix published

  • red hat enterprise linux 9.6 extended update support

    Versions
    • ≥ 0:1.22.12-4.el9_6.1: Not affected (rpm)

    No fix published

  • red hat enterprise linux 7

    No fix published

  • red hat enterprise linux 8

    No fix published

  • gst-plugins-ugly1.0 Debian:12

    Versions
    • 1.22.0-2
    • 1.22.0-2+deb12u1
    • 1.22.0-2+deb12u2
    • 1.22.1-1
    • 1.22.10-1
    • 1.22.3-1
    • 1.22.3-2
    • 1.22.4-1
    • 1.22.5-1
    • 1.22.6-1
    • 1.22.7-1
    • 1.22.8-1
    • 1.22.9-1
    • 1.23.1-1
    • 1.23.2-1
    • 1.23.90-1
    • 1.24.0-1
    • 1.24.1-1
    • 1.24.10-1
    • 1.24.11-1
    • 1.24.12-1
    • 1.24.2-1
    • 1.24.3-1
    • 1.24.4-1
    • 1.24.5-1
    • 1.24.6-1
    • 1.24.7-1
    • 1.24.8-1
    • 1.24.9-1
    • 1.25.1-1
    • 1.25.50-1
    • 1.25.50-2
    • 1.25.90-1
    • 1.25.90-2
    • 1.26.0-1
    • 1.26.1-1
    • 1.26.10-1
    • 1.26.2-1
    • 1.26.3-1
    • 1.26.3-2
    • 1.26.3-3
    • 1.26.3-4
    • 1.26.4-1
    • 1.26.5-1
    • 1.26.5-2
    • 1.26.6-1
    • 1.26.7-1
    • 1.26.8-1
    • 1.26.9-1
    • 1.27.1-1
    • 1.27.2-1
    • 1.27.50-1
    • 1.27.50-2
    • 1.27.90-1
    • 1.28.0-1
    • 1.28.1-1
    • 1.28.2-1
    • 1.28.3-1
    • 1.28.4-1
    • 1.28.5-1
    • 1.28.6-1
    • 1.28.7-1
    • 1.29.1-1
    • 1.29.2-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • gst-plugins-ugly1.0 Debian:13

    Versions
    • 1.26.10-1
    • 1.26.3-4
    • 1.26.3-4+deb13u1
    • 1.26.4-1
    • 1.26.5-1
    • 1.26.5-2
    • 1.26.6-1
    • 1.26.7-1
    • 1.26.8-1
    • 1.26.9-1
    • 1.27.1-1
    • 1.27.2-1
    • 1.27.50-1
    • 1.27.50-2
    • 1.27.90-1
    • 1.28.0-1
    • 1.28.1-1
    • 1.28.2-1
    • 1.28.3-1
    • 1.28.4-1
    • 1.28.5-1
    • 1.28.6-1
    • 1.28.7-1
    • 1.29.1-1
    • 1.29.2-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • gst-plugins-ugly1.0 Debian:14

    Versions
    • 1.26.10-1
    • 1.26.3-4
    • 1.26.4-1
    • 1.26.5-1
    • 1.26.5-2
    • 1.26.6-1
    • 1.26.7-1
    • 1.26.8-1
    • 1.26.9-1
    • 1.27.1-1
    • 1.27.2-1
    • 1.27.50-1
    • 1.27.50-2
    • 1.27.90-1
    • 1.28.0-1
    • 1.28.1-1
    • 1.28.2-1
    • 1.28.3-1
    Affected ranges
    • ECOSYSTEM: < 1.28.4-1

    Update to 1.28.4-1

  • gst-plugins-ugly1.0 Ubuntu:Pro:16.04:LTS

    Versions
    • 1.6.0-1ubuntu1
    • 1.6.1-1ubuntu1
    • 1.6.2-1ubuntu1
    • 1.7.1-1ubuntu1
    • 1.7.2-1ubuntu1
    • 1.7.90-1ubuntu1
    • 1.7.91-1ubuntu1
    • 1.8.0-1ubuntu1
    • 1.8.1-1ubuntu0.1
    • 1.8.2-1ubuntu0.1
    • 1.8.3-1ubuntu0.1
    • 1.8.3-1ubuntu0.1+esm1
    Affected ranges
    • ECOSYSTEM: < 1.8.3-1ubuntu0.1+esm2

    Update to 1.8.3-1ubuntu0.1+esm2

  • gst-plugins-ugly1.0 Ubuntu:Pro:18.04:LTS

    Versions
    • 1.12.3-1
    • 1.12.3-1build1
    • 1.12.4-1
    • 1.12.4-1build1
    • 1.13.1-1
    • 1.13.91-1
    • 1.14.0-1
    • 1.14.1-1~ubuntu18.04.1
    • 1.14.4-1~ubuntu18.04.1
    • 1.14.5-0ubuntu1~18.04.1
    Affected ranges
    • ECOSYSTEM: < 1.14.5-0ubuntu1~18.04.1+esm1

    Update to 1.14.5-0ubuntu1~18.04.1+esm1

  • gst-plugins-ugly1.0 Ubuntu:Pro:20.04:LTS

    Versions
    • 1.16.1-1
    • 1.16.1-1build1
    • 1.16.2-1
    • 1.16.2-2
    • 1.16.2-2build1
    Affected ranges
    • ECOSYSTEM: < 1.16.2-2ubuntu0.1~esm1

    Update to 1.16.2-2ubuntu0.1~esm1

  • gst-plugins-ugly1.0 Ubuntu:Pro:22.04:LTS

    Versions
    • 1.18.5-1
    • 1.20.0-1
    • 1.20.0-1build1
    • 1.20.1-1
    Affected ranges
    • ECOSYSTEM: < 1.20.1-1ubuntu0.1~esm1

    Update to 1.20.1-1ubuntu0.1~esm1

  • gst-plugins-ugly1.0 Ubuntu:Pro:24.04:LTS

    Versions
    • 1.22.5-1
    • 1.22.6-1
    • 1.22.7-1
    • 1.22.8-1
    • 1.22.10-1
    • 1.24.1-1
    • 1.24.1-1build1
    Affected ranges
    • ECOSYSTEM: < 1.24.1-1ubuntu0.1~esm1

    Update to 1.24.1-1ubuntu0.1~esm1

  • gst-plugins-ugly1.0 Ubuntu:25.10

    Versions
    • 1.26.0-1
    • 1.26.1-1
    • 1.26.2-1
    • 1.26.3-1
    • 1.26.3-3
    • 1.26.3-4
    • 1.26.4-1
    • 1.26.5-1
    • 1.26.6-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • gst-plugins-ugly1.0 Ubuntu:Pro:26.04:LTS

    Versions
    • 1.26.6-1
    • 1.26.7-1build1
    • 1.27.2-1
    • 1.27.90-1
    • 1.28.0-1
    • 1.28.1-1
    • 1.28.2-1
    Affected ranges
    • ECOSYSTEM: < 1.28.2-1ubuntu0.1~esm1

    Update to 1.28.2-1ubuntu0.1~esm1

Original sources

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