CVE-2015-3900 · cross-distro fix matrix

CVE-2015-3900: RubyGems 2.0.x before 2.0.16, 2.2.x before 2.2.4, and 2.4.x before 2.4.7 does not validate the hostname when fetching gems or making API requests, which allows remote attackers to redirect requests to arbitrary domains via a crafted DNS SRV record, aka a "DNS hijack attack."

Affects 2 Linux releases across 2 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2015-3900 has a known fix. Run the listed command on that distro to remediate.

Debian bookworm

Source: Debian Security Tracker

jruby→ fixed in1.7.20.1-2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y jruby
```

Debian trixie

Source: Debian Security Tracker

jruby→ fixed in1.7.20.1-2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y jruby
```

Are YOU affected by CVE-2015-3900?

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.

curl https://mindsparkstack.com/scan.sh | bash

Form-based quickscan View on NVD

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