FFmpeg 4.4 through 9.0.2 contains a use of uninitialized variable vulnerability in the CDXL decoder that leaks stack memory into decoded pixels via…
FFmpeg 4.4 through 9.0.2 contains a use of uninitialized variable vulnerability in the CDXL decoder that leaks stack memory into decoded pixels via unfilled HAM palette entries. Attackers can craft a type-0 CDXL file whose HAM pixels select unfilled new_palette entries in cdxl_decode_ham8() or cdxl_decode_ham6(), exposing stack bytes and pointer fragments in the BGR24 output.
Read at NIST National Vulnerability Database (CVE API 2.0)
- Vendor
- FFmpeg
- Product
- FFmpeg
- CVSS v3.1
- 5.5 AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
- Weakness
- CWE-457
- NVD status
- Received
Why it ranks 18 (Routine)
- CVSS v3.1 5.5 medium
- Recency: items published within 24 hours gain 15, within 72 hours 6, within 7 days 2.