| Name | CVE-2017-0903 |
| Description | RubyGems versions between 2.0.0 and 2.6.13 are vulnerable to a possible remote code execution vulnerability. YAML deserialization of gem specifications can bypass class white lists. Specially crafted serialized objects can possibly be used to escalate to remote code execution. |
| 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-4031-1 |
| Debian Bugs | 879231 |
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.openwall.com/lists/oss-security/2017/10/10/2
https://justi.cz/security/2017/10/07/rubygems-org-rce.html
Fixed by: https://github.com/rubygems/rubygems/commit/510b1638ac9bba3ceb7a5d73135dafff9e5bab49