GHSL-2024-228: GStreamer has an out-of-bounds write in SSA subtitle parser

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.

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跨界内存写

GStreamer 缓冲区错误漏洞

GStreamer是GStreamer开源的一套用于处理流媒体的框架。 GStreamer存在缓冲区错误漏洞，该漏洞源于在gstssaparse.c文件的gst_ssa_parse_remove_override_codes函数中发现越界写入漏洞。

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