CVE-2026-120245
Discovered by AISLEPUBLISHEDCWE-908
Description
FFmpeg 0.10 through 9.0.2 contains a use of uninitialized resource vulnerability in sunrast_decode_frame() that leaks heap memory when decoding truncated 1-bit and 4-bit paletted Sun Raster images. Attackers can craft a truncated Sun Raster file so the uncleared temporary bitmap is expanded into PAL8 pixels, exposing stale heap contents such as allocator words in decoded output.
CVSS Base Scores
CVSS v4.06.8
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
CVSS v3.1
5.5CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Affected Products
| Vendor | Product | Version | Status |
|---|---|---|---|
| FFmpeg | FFmpeg | 0.10 | affected |
Credits
- Adrian Junge (vurlo)(finder)
References
- https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24877
- https://github.com/FFmpeg/FFmpeg/commit/356a391bf57df2fb80fd61f2821c8c83d15ce180
- https://github.com/FFmpeg/FFmpeg/commit/66b6ca270b33fd74367d7d371f6de16ec664446e
- https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/sunrast.c#L188-L194
- https://github.com/FFmpeg/FFmpeg
- https://www.vulncheck.com/advisories/ffmpeg-0.10-through-9.0.2-uninitialized-memory-disclosure-via-sun-raster-decoder