Description
In libavformat/mxfdec.c in FFmpeg 3.3.3 -> 2.4, a DoS in mxf_read_index_entry_array() due to lack of an EOF (End of File) check might cause huge CPU consumption. When a crafted MXF file, which claims a large "nb_index_entries" field in the header but does not contain sufficient backing data, is provided, the loop would consume huge CPU resources, since there is no EOF check inside the loop. Moreover, this big loop can be invoked multiple times if there is more than one applicable data segment in the crafted MXF file.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | ffmpeg | 7:3.3.4-1 | — |
| Debian 13 | ffmpeg | 7:3.3.4-1 | — |
| Debian 12 | ffmpeg | 7:3.3.4-1 | — |
| Debian 9 | ffmpeg | 7:3.2.8-1~deb9u1 | DSA-3996-1 |
| Debian 8 | libav | 6:11.12-1~deb8u4 | DLA-1630-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | ffmpeg | 7:2.8.14-0ubuntu0.16.04.1 | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | ffmpeg-4 | 4.4-5.2 | openSUSE-SU-2024:10754-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | ffmpeg | 3.3.4-r0 | — |
| Alpine v3.23 | ffmpeg | 3.3.4-r0 | — |
| Alpine v3.22 | ffmpeg +1 | 3.3.4-r0 | — |
| Alpine v3.21 | ffmpeg +1 | 3.3.4-r0 | — |
| Alpine v3.20 | ffmpeg +1 | 3.3.4-r0 | — |
Show 16 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | ffmpeg +1 | 3.3.4-r0 | — |
| Alpine v3.18 | ffmpeg +1 | 3.3.4-r0 | — |
| Alpine v3.17 | ffmpeg +1 | 3.3.4-r0 | — |
| Alpine v3.16 | ffmpeg +1 | 3.3.4-r0 | — |
| Alpine v3.15 | ffmpeg | 3.3.4-r0 | — |
| Alpine v3.14 | ffmpeg | 3.3.4-r0 | — |
| Alpine v3.13 | ffmpeg | 3.3.4-r0 | — |
| Alpine v3.12 | ffmpeg | 3.3.4-r0 | — |
| Alpine v3.11 | ffmpeg | 3.3.4-r0 | — |
| Alpine v3.10 | ffmpeg | 3.3.4-r0 | — |
| Alpine v3.9 | ffmpeg | 3.3.4-r0 | — |
| Alpine v3.8 | ffmpeg | 3.3.4-r0 | — |
| Alpine v3.7 | ffmpeg | 3.3.4-r0 | — |
| Alpine v3.6 | ffmpeg | 3.2.8-r0 | — |
| Alpine v3.5 | ffmpeg | 3.1.11-r0 | — |
| Alpine v3.4 | ffmpeg | 3.1.11-r0 | — |
Advisories 3
- DSA-3996-1 ffmpeg - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-1630-1 libav - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:10754-1 ffmpeg-4-4.4-5.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026