Out-of-bounds Write Affecting gst-plugins-bad1.0 package, versions *


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.15% (4th percentile)

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  • Snyk IDSNYK-ECHOLATEST-GSTPLUGINSBAD10-21184698
  • published18 Oct 2026
  • disclosed14 Oct 2026

Introduced: 14 Oct 2026

NewCVE-2026-100231  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

There is no fixed version for Echo:latest gst-plugins-bad1.0.

NVD Description

Note: Versions mentioned in the description apply only to the upstream gst-plugins-bad1.0 package and not the gst-plugins-bad1.0 package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

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 Base Scores

version 3.1