CVE-2019-16782 · cross-distro fix matrix

CVE-2019-16782: There's a possible information leak / session hijack vulnerability in Rack (RubyGem rack). This vulnerability is patched in versions 1.6.12 and 2.0.8. Attackers may be able to find and hijack sessions by using timing attacks targeting the session id. Session ids are usually stored and indexed in a d

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

Fix per ecosystem

Each block below is a distro release where CVE-2019-16782 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

ruby-rack→ fixed in2.1.1-2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y ruby-rack
```

Debian bookworm

Source: Debian Security Tracker

ruby-rack→ fixed in2.1.1-2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y ruby-rack
```

Debian trixie

Source: Debian Security Tracker

ruby-rack→ fixed in2.1.1-2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y ruby-rack
```

Are YOU affected by CVE-2019-16782?

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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