CVE-2024-47606

01/תיאור (מקור, אנגלית)

GStreamer is a library for constructing graphs of media-handling components. An integer underflow has been detected in the function qtdemux_parse_theora_extension within qtdemux.c. The vulnerability occurs due to an underflow of the gint size variable, which causes size to hold a large unintended value when cast to an unsigned integer. This 32-bit negative value is then cast to a 64-bit unsigned integer (0xfffffffffffffffa) in a subsequent call to gst_buffer_new_and_alloc. The function gst_buffer_new_allocate then attempts to allocate memory, eventually calling _sysmem_new_block. The function _sysmem_new_block adds alignment and header size to the (unsigned) size, causing the overflow of the 'slice_size' variable. As a result, only 0x89 bytes are allocated, despite the large input size. When the following memcpy call occurs in gst_buffer_fill, the data from the input file will overwrite the content of the GstMapInfo info structure. Finally, during the call to gst_memory_unmap, the overwritten memory may cause a function pointer hijack, as the mem->allocator->mem_unmap_full function is called with a corrupted pointer. This function pointer overwrite could allow an attacker to alter the execution flow of the program, leading to arbitrary code execution. This vulnerability is fixed in 1.24.10.

02/מוצרים מושפעים

gstreamer: gstreamer; debian: debian linux

03/קישורים6

• gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/80‮… Patch
• gstreamer.freedesktop.org/security/sa-2024-0014.html Release Notes
• securitylab.github.com/advisories/GHSL-2024-166_Gstreamer/ Third Party Advisory
• lists.debian.org/debian-lts-announce/2024/12/msg00016.html Mailing List
• lists.debian.org/debian-lts-announce/2025/02/msg00035.html
• security.netapp.com/advisory/ntap-20250418-0003/