CVE-2020-23109 · cross-distro fix matrix

CVE-2020-23109: Buffer overflow vulnerability in function convert_colorspace in heif_colorconversion.cc in libheif v1.6.2, allows attackers to cause a denial of service and disclose sensitive information, via a crafted HEIF file.

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

Fix per ecosystem

Each block below is a distro release where CVE-2020-23109 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

libheif→ fixed in1.8.0-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y libheif
```

Debian bookworm

Source: Debian Security Tracker

libheif→ fixed in1.8.0-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y libheif
```

Debian trixie

Source: Debian Security Tracker

libheif→ fixed in1.8.0-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y libheif
```

Are YOU affected by CVE-2020-23109?

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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