An out-of-bounds write vulnerability was found in GStreamer's H.266/VVC PPS picture partition parser in gst-plugins-bad. In the multi-slice-in-tile processing of gst_h266_parser_parse_picture_partition() (gsth266parser.c), the loop iterates without checking that the slice index stays within bounds, writing past three fixed-size arrays (slice_height_in_ctus, slice_top_left_ctu_x, slice_top_left_ctu_y) in the GstH266PPS structure. While the initial proof-of-concept demonstrated a 4-byte out-of-bounds write, the code permits larger writes across multiple iterations. A crafted H.266/VVC media file can trigger this vulnerability.

An out-of-bounds write vulnerability was found in GStreamer's H.266/VVC PPS picture partition parser in gst-plugins-bad. In the multi-slice-in-tile processing of gst_h266_parser_parse_picture_partition() (gsth266parser.c), the loop iterates without checking that the slice index stays within bounds, writing past three fixed-size arrays (slice_height_in_ctus, slice_top_left_ctu_x, slice_top_left_ctu_y) in the GstH266PPS structure. While the initial proof-of-concept demonstrated a 4-byte out-of-bounds write, the code permits larger writes across multiple iterations. A crafted H.266/VVC media file can trigger this vulnerability.

Security update for gstreamer-plugins-bad

Security update for gstreamer-plugins-bad

Affected: Ubuntu:Pro:14.04:LTS: gst-plugins-bad1.0, Ubuntu:Pro:16.04:LTS: gst-plugins-bad1.0, Ubuntu:Pro:18.04:LTS: gst-plugins-bad1.0, Ubuntu:Pro:20.04:LTS: gst-plugins-bad1.0, Ubuntu:Pro:22.04:LTS: gst-plugins-bad1.0, Ubuntu:Pro:24.04:LTS: gst-plugins-bad1.0, Ubuntu:25.10: gst-plugins-bad1.0, Ubuntu:26.04:LTS: gst-plugins-bad1.0

An out-of-bounds write vulnerability was found in GStreamer's H.266/VVC PPS picture partition parser in gst-plugins-bad. In the multi-slice-in-tile processing of gst_h266_parser_parse_picture_partition() (gsth266parser.c), the loop iterates without checking that the slice index stays within bounds, writing past three fixed-size arrays (slice_height_in_ctus, slice_top_left_ctu_x, slice_top_left_ctu_y) in the GstH266PPS structure. While the initial proof-of-concept demonstrated a 4-byte out-of-bounds write, the code permits larger writes across multiple iterations. A crafted H.266/VVC media file can trigger this vulnerability.

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in GStreamer ausnutzen, um Informationen offenzulegen, um einen Denial-of-Service-Angriff durchzuführen, um Daten zu beschädigen oder beliebigen Code auszuführen.