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CVE-2024-47834

Estado: ModificadaMedia (5.1)—

GStreamer is a library for constructing graphs of media-handling components. An Use-After-Free read vulnerability has been discovered affecting the processing of CodecPrivate elements in Matroska streams. In the GST_MATROSKA_ID_CODECPRIVATE case within the gst_matroska_demux_parse_stream function, a data chunk is allocated using gst_ebml_read_binary. Later, the allocated memory is freed in the gst_matroska_track_free function, by the call to g_free (track->codec_priv). Finally, the freed memory is accessed in the caps_serialize function through gst_value_serialize_buffer.

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The freed memory will be accessed in the gst_value_serialize_buffer function. This results in a UAF read vulnerability, as the function tries to process memory that has already been freed. This vulnerability is fixed in 1.24.10.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Gstreamer — Gstreamer

CWE

Referencias

JSON original (NVD)

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      "value": "GStreamer is a library for constructing graphs of media-handling components. An Use-After-Free read vulnerability has been discovered affecting the processing of CodecPrivate elements in Matroska streams. In the GST_MATROSKA_ID_CODECPRIVATE case within the gst_matroska_demux_parse_stream function, a data chunk is allocated using gst_ebml_read_binary. Later, the allocated memory is freed in the gst_matroska_track_free function, by the call to g_free (track->codec_priv). Finally, the freed memory is accessed in the caps_serialize function through gst_value_serialize_buffer. The freed memory will be accessed in the gst_value_serialize_buffer function. This results in a UAF read vulnerability, as the function tries to process memory that has already been freed. This vulnerability is fixed in 1.24.10."
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      "value": "GStreamer es una librería para construir gráficos de componentes de manejo de medios. Se ha descubierto una vulnerabilidad de lectura de tipo Use-After-Free que afecta el procesamiento de elementos CodecPrivate en transmisiones Matroska. En el caso GST_MATROSKA_ID_CODECPRIVATE dentro de la función gst_matroska_demux_parse_stream, se asigna un fragmento de datos utilizando gst_ebml_read_binary. Más tarde, la memoria asignada se libera en la función gst_matroska_track_free, mediante la llamada a g_free (track-&gt;codec_priv). Finalmente, se accede a la memoria liberada en la función caps_serialize a través de gst_value_serialize_buffer. Se accederá a la memoria liberada en la función gst_value_serialize_buffer. Esto da como resultado una vulnerabilidad de lectura de UAF, ya que la función intenta procesar la memoria que ya se ha liberado. Esta vulnerabilidad se corrigió en 1.24.10."
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  "lastModified": "2026-06-17T07:57:50.383",
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