GHSL-2024-228: GStreamer has an out-of-bounds write in SSA subtitle parser
概要
GHSL-2024-228: GStreamer has an out-of-bounds write in SSA subtitle parser
原文の説明
取得元が公開している説明をそのまま載せています (多くは英語)。
GStreamer is a library for constructing graphs of media-handling components. An OOB-write vulnerability has been identified in the gst_ssa_parse_remove_override_codes function of the gstssaparse.c file. This function is responsible for parsing and removing SSA (SubStation Alpha) style override codes, which are enclosed in curly brackets ({}). The issue arises when a closing curly bracket "}" appears before an opening curly bracket "{" in the input string. In this case, memmove() incorrectly duplicates a substring. With each successive loop iteration, the size passed to memmove() becomes progressively larger (strlen(end+1)), leading to a write beyond the allocated memory bounds. This vulnerability is fixed in 1.24.10.
ディストリビューション別の修正状況
各ディストリビューションが公開している、この CVE の修正パッケージ
- Alpine Linux ALPINE-CVE-2024-47541 gst-plugins-base 修正版: 1.24.10-r0
- Debian DEBIAN-CVE-2024-47541 gst-plugins-base1.0 修正版: 1.18.4-2+deb11u3
- Ubuntu UBUNTU-CVE-2024-47541 gst-plugins-base0.10
参照URL
- advisory github.com
- advisory nvd.nist.gov
- advisory securitylab.github.com
- patch gitlab.freedesktop.org
- web gstreamer.freedesktop.org
- web lists.debian.org