CVE-2024-47834

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.

CVSS v3 9.1 CRITICAL

9.1^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/8057.patch	Patch
https://gstreamer.freedesktop.org/security/sa-2024-0030.html	Release Notes
https://securitylab.github.com/advisories/GHSL-2024-280_Gstreamer/	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:gstreamer_project:gstreamer:*:*:*:*:*:*:*:*

History

18 Dec 2024, 19:43

Type	Values Removed	Values Added
New CVE

Information

Published : 2024-12-12 02:03

Updated : 2024-12-18 19:43

NVD link : CVE-2024-47834

Mitre link : CVE-2024-47834

CVE.ORG link : CVE-2024-47834

JSON object : View

Products Affected

gstreamer_project

gstreamer

CWE

CWE-416

Use After Free

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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 funci\u00f3n gst_matroska_demux_parse_stream, se asigna un fragmento de datos utilizando gst_ebml_read_binary. M\u00e1s tarde, la memoria asignada se libera en la funci\u00f3n gst_matroska_track_free, mediante la llamada a g_free (track->codec_priv). Finalmente, se accede a la memoria liberada en la funci\u00f3n caps_serialize a trav\u00e9s de gst_value_serialize_buffer. Se acceder\u00e1 a la memoria liberada en la funci\u00f3n gst_value_serialize_buffer. Esto da como resultado una vulnerabilidad de lectura de UAF, ya que la funci\u00f3n intenta procesar la memoria que ya se ha liberado. 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