CVE-2024-47606
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.35%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 4.0
- 8.6 HIGHCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 1.35% probability · 70th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-190, CWE-191
- Affected
- gstreamer/gstreamer · debian/debian linux
- Source
- security-advisories@github.com
References
- https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/8032.patchPatch
- https://gstreamer.freedesktop.org/security/sa-2024-0014.htmlRelease Notes
- https://securitylab.github.com/advisories/GHSL-2024-166_Gstreamer/Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2024/12/msg00016.htmlMailing List
- https://lists.debian.org/debian-lts-announce/2025/02/msg00035.html
- https://security.netapp.com/advisory/ntap-20250418-0003/
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.