CVE-2016-2830 · cross-distro fix matrix

CVE-2016-2830: Mozilla Firefox before 48.0 and Firefox ESR 45.x before 45.3 preserve the network connection used for favicon resource retrieval after the associated browser window is closed, which makes it easier for remote web servers to track users by observing network traffic from multiple IP addresses.

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

Fix per ecosystem

Each block below is a distro release where CVE-2016-2830 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

firefox-esr→ fixed in45.3.0esr-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y firefox-esr
```

Debian bookworm

Source: Debian Security Tracker

firefox-esr→ fixed in45.3.0esr-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y firefox-esr
```

Debian trixie

Source: Debian Security Tracker

firefox-esr→ fixed in45.3.0esr-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y firefox-esr
```

Are YOU affected by CVE-2016-2830?

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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