CVE-2018-12459 · cross-distro fix matrix

CVE-2018-12459: An inconsistent bits-per-sample value in the ff_mpeg4_decode_picture_header function in libavcodec/mpeg4videodec.c in FFmpeg 4.0 may trigger an assertion violation while converting a crafted AVI file to MPEG4, leading to a denial of service.

Affects 8 Linux releases across 12 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2018-12459 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

ffmpeg→ fixed in7:4.0.1-2urgency: low

sudo apt-get install --only-upgrade -y ffmpeg

Debian bookworm

Source: Debian Security Tracker

ffmpeg→ fixed in7:4.0.1-2urgency: low

sudo apt-get install --only-upgrade -y ffmpeg

Debian trixie

Source: Debian Security Tracker

ffmpeg→ fixed in7:4.0.1-2urgency: low

sudo apt-get install --only-upgrade -y ffmpeg

Alpine v3.20

Source: Alpine secdb

ffmpeg→ fixed in4.0.1-r0
```
apk update && apk add --upgrade ffmpeg
```
ffmpeg4→ fixed in4.0.1-r0
```
apk update && apk add --upgrade ffmpeg4
```

Alpine v3.21

Source: Alpine secdb

ffmpeg→ fixed in4.0.1-r0
```
apk update && apk add --upgrade ffmpeg
```
ffmpeg4→ fixed in4.0.1-r0
```
apk update && apk add --upgrade ffmpeg4
```

Alpine edge

Source: Alpine secdb

ffmpeg→ fixed in4.0.1-r0
```
apk update && apk add --upgrade ffmpeg
```

Alpine v3.18

Source: Alpine secdb

ffmpeg→ fixed in4.0.1-r0
```
apk update && apk add --upgrade ffmpeg
```
ffmpeg4→ fixed in4.0.1-r0
```
apk update && apk add --upgrade ffmpeg4
```

Alpine v3.19

Source: Alpine secdb

ffmpeg→ fixed in4.0.1-r0
```
apk update && apk add --upgrade ffmpeg
```
ffmpeg4→ fixed in4.0.1-r0
```
apk update && apk add --upgrade ffmpeg4
```

Are YOU affected by CVE-2018-12459?

5-second check on your actual server. Reads /etc/os-release, uname -r, and the distro's package manager; matches against this same cross-source index live.

curl https://mindsparkstack.com/scan.sh | bash

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