| Name | CVE-2017-0902 |
| Description | RubyGems version 2.6.12 and earlier is vulnerable to a DNS hijacking vulnerability that allows a MITM attacker to force the RubyGems client to download and install gems from a server that the attacker controls. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-1421-1, DSA-3966-1 |
| Debian Bugs | 873802 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| ruby2.1 (PTS) | jessie, jessie (lts) | 2.1.5-2+deb8u14 | fixed |
| ruby2.3 (PTS) | stretch (security) | 2.3.3-1+deb9u11 | fixed |
| stretch (lts), stretch | 2.3.3-1+deb9u12 | fixed |
| rubygems (PTS) | bullseye | 3.2.5-2 | fixed |
| bookworm | 3.3.15-2 | fixed |
| sid, trixie | 3.4.20-1 | fixed |
The information below is based on the following data on fixed versions.
Notes
[wheezy] - ruby1.9.1 <not-affected> (Vulnerable code introduced later)
[wheezy] - rubygems <not-affected> (Vulnerable code introduced later)
https://www.ruby-lang.org/en/news/2017/08/29/multiple-vulnerabilities-in-rubygems/
http://blog.rubygems.org/2017/08/27/2.6.13-released.html
For Ruby 2.3.4: https://bugs.ruby-lang.org/attachments/download/6691/rubygems-2613-ruby23.patch
For Ruby 2.2.7: https://bugs.ruby-lang.org/attachments/download/6690/rubygems-2613-ruby22.patch