CVE-2024-47834
CriticalSummary
W bibliotece GStreamer odkryto podatność typu Use-After-Free (UAF) dotycząca przetwarzania elementów CodecPrivate w strumieniach Matroska. Problem występuje w funkcji gst_matroska_demux_parse_stream, gdzie zwolniona pamięć jest ponownie odczytywana, co prowadzi do naruszenia bezpieczeństwa.
Risk Assessment
Dla organizacji, ta podatność może prowadzić do nieautoryzowanego dostępu do pamięci, co może skutkować wyciekiem danych lub awarią aplikacji. Wykorzystanie tej luki może umożliwić atakującym przejęcie kontroli nad systemem.
Recommendation
Zaleca się aktualizację biblioteki GStreamer do wersji 1.24.10 lub nowszej, aby usunąć tę podatność. Należy również przeprowadzić audyt aplikacji korzystających z tej biblioteki w celu zidentyfikowania potencjalnych zagrożeń.
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Original NVD description (English source)
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.