CVE-2020-5202 · cross-distro fix matrix

CVE-2020-5202: apt-cacher-ng through 3.3 allows local users to obtain sensitive information by hijacking the hardcoded TCP port. The /usr/lib/apt-cacher-ng/acngtool program attempts to connect to apt-cacher-ng via TCP on localhost port 3142, even if the explicit SocketPath=/var/run/apt-cacher-ng/socket command-lin

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

Fix per ecosystem

Each block below is a distro release where CVE-2020-5202 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

apt-cacher-ng→ fixed in3.3.1-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y apt-cacher-ng
```

Debian bookworm

Source: Debian Security Tracker

apt-cacher-ng→ fixed in3.3.1-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y apt-cacher-ng
```

Debian trixie

Source: Debian Security Tracker

apt-cacher-ng→ fixed in3.3.1-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y apt-cacher-ng
```

Are YOU affected by CVE-2020-5202?

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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