| Name | CVE-2021-28965 |
| Description | The REXML gem before 3.2.5 in Ruby before 2.6.7, 2.7.x before 2.7.3, and 3.x before 3.0.1 does not properly address XML round-trip issues. An incorrect document can be produced after parsing and serializing. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DSA-5066-1 |
| Debian Bugs | 986806, 986807 |
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+deb8u13 | vulnerable |
| ruby2.3 (PTS) | stretch (security), stretch (lts), stretch | 2.3.3-1+deb9u11 | vulnerable |
| ruby2.5 (PTS) | buster | 2.5.5-3+deb10u4 | fixed |
| buster (security) | 2.5.5-3+deb10u6 | fixed |
| ruby2.7 (PTS) | bullseye (security), bullseye | 2.7.4-1+deb11u1 | fixed |
The information below is based on the following data on fixed versions.
Notes
[stretch] - ruby2.3 <postponed> (Minor issue; can be fixed in next update)
https://www.ruby-lang.org/en/news/2021/04/05/xml-round-trip-vulnerability-in-rexml-cve-2021-28965/
[jessie] - ruby2.1 <ignored> (Minor issue and a bit too intrusive to backport to 2.1)