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CVE-2026-100231

CVE-2026-100231 · Gstreamer1-plugins-bad-free: gstreamer1-plugins-bad-free: heap out-of-bounds write in asfmux due to incorrect utf-16 size calculation for non-bmp characters

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

A flaw was found in the GStreamer multimedia framework's ASF muxer plugin (asfmux). When writing string metadata tags containing Unicode characters outside the Basic Multilingual Plane (such as emoji) to an ASF container, the plugin incorrectly calculates the buffer size needed for the UTF-16LE representation. The size calculation assumes each Unicode code point requires 2 bytes, but non-BMP characters require 4 bytes (surrogate pairs). This leads to a heap out-of-bounds write when the actual UTF-16LE conversion is written into the undersized buffer. An attacker could exploit this by providing media with crafted metadata tags to an application that transcodes or remuxes to ASF format while preserving metadata, potentially causing a denial of service or limited memory corruption.

CVSS 6.1 · Medium · EPSS 0.2%

Published
Updated

Stack: system

Affected products and versions

  • red hat enterprise linux 10

    No fix published

  • red hat enterprise linux 7

    No fix published

  • red hat enterprise linux 8

    No fix published

  • red hat enterprise linux 9

    No fix published

  • gst-plugins-bad1.0 Debian:12

    Versions
    • 1.22.0-4
    • 1.22.0-4+deb12u1
    • 1.22.0-4+deb12u2
    • 1.22.0-4+deb12u3
    • 1.22.0-4+deb12u4
    • 1.22.0-4+deb12u5
    • 1.22.0-4+deb12u6
    • 1.22.0-4+deb12u7
    • 1.22.0-4+deb12u8
    • 1.22.1-1
    • 1.22.10-1
    • 1.22.3-1
    • 1.22.3-2
    • 1.22.4-1
    • 1.22.7-1
    • 1.22.8-1
    • 1.22.9-1
    • 1.22.9-2
    • 1.23.1-1
    • 1.23.2-1
    • 1.23.90-1
    • 1.24.0-1
    • 1.24.1-1
    • 1.24.1-2
    • 1.24.1-3
    • 1.24.1-4
    • 1.24.10-1
    • 1.24.10-2
    • 1.24.10-2+hurd.1
    • 1.24.10-3
    • 1.24.11-1
    • 1.24.11-2
    • 1.24.11-3
    • 1.24.12-1
    • 1.24.12-2
    • 1.24.12-3
    • 1.24.2-1
    • 1.24.2-2
    • 1.24.2-3
    • 1.24.2-4
    • 1.24.3-1
    • 1.24.4-1
    • 1.24.4-2
    • 1.24.5-1
    • 1.24.6-1
    • 1.24.7-1
    • 1.24.8-1
    • 1.24.8-2
    • 1.24.9-1
    • 1.25.1-1
    • 1.25.1-2
    • 1.25.1-3
    • 1.25.50-1
    • 1.25.90-1
    • 1.25.90-2
    • 1.25.90-3
    • 1.26.0-1
    • 1.26.1-1
    • 1.26.10-1
    • 1.26.10-2
    • 1.26.2-1
    • 1.26.2-2
    • 1.26.2-3
    • 1.26.3-1
    • 1.26.4-1
    • 1.26.5-1
    • 1.26.5-2
    • 1.26.6-1
    • 1.26.6-2
    • 1.26.6-3
    • 1.26.6-4
    • 1.26.6-5
    • 1.26.7-1
    • 1.26.7-2
    • 1.26.8-1
    • 1.26.9-1
    • 1.27.1-1
    • 1.27.2-1
    • 1.27.50-1
    • 1.27.90-1
    • 1.27.90-2
    • 1.27.90-3
    • 1.28.0-1
    • 1.28.1-1
    • 1.28.1-2
    • 1.28.1-3
    • 1.28.2-1
    • 1.28.2-2
    • 1.28.3-1
    • 1.28.4-1
    • 1.28.5-1
    • 1.28.5-2
    • 1.28.6-1
    • 1.28.7-1
    • 1.28.7-2
    • 1.28.8-1
    • 1.29.1-1
    • 1.29.2-1
    • 1.29.2-2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • gst-plugins-bad1.0 Debian:13

    Versions
    • 1.26.10-1
    • 1.26.10-2
    • 1.26.2-3
    • 1.26.2-3+deb13u1
    • 1.26.2-3+deb13u2
    • 1.26.2-3+deb13u3
    • 1.26.3-1
    • 1.26.4-1
    • 1.26.5-1
    • 1.26.5-2
    • 1.26.6-1
    • 1.26.6-2
    • 1.26.6-3
    • 1.26.6-4
    • 1.26.6-5
    • 1.26.7-1
    • 1.26.7-2
    • 1.26.8-1
    • 1.26.9-1
    • 1.27.1-1
    • 1.27.2-1
    • 1.27.50-1
    • 1.27.90-1
    • 1.27.90-2
    • 1.27.90-3
    • 1.28.0-1
    • 1.28.1-1
    • 1.28.1-2
    • 1.28.1-3
    • 1.28.2-1
    • 1.28.2-2
    • 1.28.3-1
    • 1.28.4-1
    • 1.28.5-1
    • 1.28.5-2
    • 1.28.6-1
    • 1.28.7-1
    • 1.28.7-2
    • 1.28.8-1
    • 1.29.1-1
    • 1.29.2-1
    • 1.29.2-2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • gst-plugins-bad1.0 Debian:14

    Versions
    • 1.26.10-1
    • 1.26.10-2
    • 1.26.2-3
    • 1.26.3-1
    • 1.26.4-1
    • 1.26.5-1
    • 1.26.5-2
    • 1.26.6-1
    • 1.26.6-2
    • 1.26.6-3
    • 1.26.6-4
    • 1.26.6-5
    • 1.26.7-1
    • 1.26.7-2
    • 1.26.8-1
    • 1.26.9-1
    • 1.27.1-1
    • 1.27.2-1
    • 1.27.50-1
    • 1.27.90-1
    • 1.27.90-2
    • 1.27.90-3
    • 1.28.0-1
    • 1.28.1-1
    • 1.28.1-2
    • 1.28.1-3
    • 1.28.2-1
    • 1.28.2-2
    • 1.28.3-1
    • 1.28.4-1
    • 1.28.5-1
    • 1.28.5-2
    • 1.28.6-1
    • 1.28.7-1
    • 1.28.7-2
    • 1.28.8-1
    • 1.29.1-1
    • 1.29.2-1
    • 1.29.2-2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • gst-plugins-bad1.0 Ubuntu:Pro:14.04:LTS

    Versions
    • 1.2.0-3ubuntu5
    • 1.2.1-1ubuntu1
    • 1.2.1-1ubuntu2
    • 1.2.2-1ubuntu1
    • 1.2.2-1ubuntu2
    • 1.2.2-1ubuntu4
    • 1.2.3-1ubuntu1
    • 1.2.3-1ubuntu2
    • 1.2.4-1~ubuntu1
    • 1.2.4-1~ubuntu1.1
    • 1.2.4-1~ubuntu1.1+esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • gst-plugins-bad1.0 Ubuntu:Pro:16.04:LTS

    Versions
    • 1.6.0-1ubuntu1
    • 1.6.1-1ubuntu1
    • 1.6.2-1ubuntu1
    • 1.7.1-1ubuntu1
    • 1.7.1-1ubuntu3
    • 1.7.1-1ubuntu4
    • 1.7.2-1ubuntu1
    • 1.7.90-1ubuntu2
    • 1.7.91-1ubuntu1
    • 1.8.0-1ubuntu1
    • 1.8.1-1ubuntu0.1
    • 1.8.2-1ubuntu0.1
    • 1.8.2-1ubuntu0.2
    • 1.8.3-1ubuntu0.2
    • 1.8.3-1ubuntu0.2+esm1
    • 1.8.3-1ubuntu0.2+esm2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • gst-plugins-bad1.0 Ubuntu:Pro:18.04:LTS

    Versions
    • 1.12.3-1ubuntu1
    • 1.12.3-1ubuntu2
    • 1.12.3-2ubuntu1
    • 1.12.4-2ubuntu1
    • 1.12.4-2ubuntu2
    • 1.13.1-1ubuntu1
    • 1.13.91-1ubuntu1
    • 1.14.0-1ubuntu1
    • 1.14.1-1ubuntu1~ubuntu18.04.1
    • 1.14.4-1ubuntu1~ubuntu18.04.1
    • 1.14.5-0ubuntu1~18.04.1
    • 1.14.5-0ubuntu1~18.04.1+esm1
    • 1.14.5-0ubuntu1~18.04.1+esm2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • gst-plugins-bad1.0 Ubuntu:Pro:20.04:LTS

    Versions
    • 1.16.1-1ubuntu1
    • 1.16.1-1ubuntu3
    • 1.16.1-1ubuntu4
    • 1.16.1-1ubuntu5
    • 1.16.1-1ubuntu6
    • 1.16.1-1ubuntu8
    • 1.16.2-1ubuntu1
    • 1.16.2-1ubuntu2
    • 1.16.2-2ubuntu1
    • 1.16.2-2.1ubuntu1
    • 1.16.3-0ubuntu1
    • 1.16.3-0ubuntu1.1
    • 1.16.3-0ubuntu1.1+esm1
    • 1.16.3-0ubuntu1.1+esm2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • gst-plugins-bad1.0 Ubuntu:Pro:22.04:LTS

    Versions
    • 1.18.5-1ubuntu1
    • 1.18.5-1ubuntu3
    • 1.20.0-2ubuntu2
    • 1.20.1-1ubuntu2
    • 1.20.3-0ubuntu1
    • 1.20.3-0ubuntu1.1
    • 1.20.3-0ubuntu1.1+esm2
    • 1.20.3-0ubuntu1.1+esm3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • gst-plugins-bad1.0 Ubuntu:Pro:24.04:LTS

    Versions
    • 1.22.4-1ubuntu1
    • 1.22.4-1ubuntu2
    • 1.22.4-1ubuntu4
    • 1.22.9-2ubuntu1
    • 1.24.0-1ubuntu3
    • 1.24.0-1ubuntu4
    • 1.24.2-1ubuntu4
    • 1.24.2-1ubuntu4+esm1
    • 1.24.2-1ubuntu4+esm2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • gst-plugins-bad1.0 Ubuntu:26.10

    Versions
    • 1.28.2-1ubuntu1
    • 1.28.2-1ubuntu2
    • 1.28.4-1ubuntu1
    • 1.28.4-1ubuntu2
    • 1.28.6-1ubuntu1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • gst-plugins-bad1.0 Ubuntu:26.04:LTS

    Versions
    • 1.26.5-1ubuntu2
    • 1.27.2-1ubuntu1
    • 1.27.90-1ubuntu2
    • 1.28.0-1ubuntu2
    • 1.28.1-2ubuntu2
    • 1.28.1-2ubuntu3
    • 1.28.2-1ubuntu1
    • 1.28.2-1ubuntu1.1
    • 1.28.2-1ubuntu1.2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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