| Name | CVE-2026-96611 |
| Description | FFmpeg before 9.0 has a signed integer overflow in libavformat/mov.c. In mov_read_ispe(), uint32_t width/height values from a crafted HEIF ispe box are stored into signed int fields without bounds checking, allowing values exceeding INT_MAX to become negative. In read_image_grid(), accumulating these values causes signed integer overflow (undefined behavior per C17 section 6.5), which on x86 wraps to a small positive value, bypassing downstream validity checks. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DSA-6361-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| ffmpeg (PTS) | bookworm, bookworm (security) | 7:5.1.9-0+deb12u1 | fixed |
| trixie (security), trixie | 7:7.1.5-0+deb13u1 | fixed | |
| forky, sid | 7:9.0.2-4 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| ffmpeg | source | bookworm | (not affected) | |||
| ffmpeg | source | trixie | 7:7.1.5-0+deb13u1 | DSA-6361-1 | ||
| ffmpeg | source | (unstable) | 7:8.1.2-1 |
[bookworm] - ffmpeg <not-affected> (Vulnerable code not present)
https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23455
Fixed by: https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/2cc7b87bdb75bcb59bf8bcd5296ca43f89b3a909 (n9.0)
Fixed by: https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/31a192f5dd75be9f7520db29ce44fa8f36ae8ba3 (n8.1.2)
Fixed by: https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/15396fa8d550cd19e8619cca919ea09ecbe84ef6 (n7.1.5)