CVE-2020-25664 · cross-distro fix matrix

CVE-2020-25664: In WriteOnePNGImage() of the PNG coder at coders/png.c, an improper call to AcquireVirtualMemory() and memset() allows for an out-of-bounds write later when PopShortPixel() from MagickCore/quantum-private.h is called. The patch fixes the calls by adding 256 to rowbytes. An attacker who is able to su

Affects 3 Linux releases across 3 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2020-25664 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

imagemagick→ fixed in8:6.9.11.24+dfsg-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y imagemagick
```

Debian bookworm

Source: Debian Security Tracker

imagemagick→ fixed in8:6.9.11.24+dfsg-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y imagemagick
```

Debian trixie

Source: Debian Security Tracker

imagemagick→ fixed in8:6.9.11.24+dfsg-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y imagemagick
```

Are YOU affected by CVE-2020-25664?

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.

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