| Name | CVE-2024-43398 |
| Description | REXML is an XML toolkit for Ruby. The REXML gem before 3.3.6 has a DoS vulnerability when it parses an XML that has many deep elements that have same local name attributes. If you need to parse untrusted XMLs with tree parser API like REXML::Document.new, you may be impacted to this vulnerability. If you use other parser APIs such as stream parser API and SAX2 parser API, this vulnerability is not affected. The REXML gem 3.3.6 or later include the patch to fix the vulnerability. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 1083190, 1083191 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| ruby2.7 (PTS) | bullseye | 2.7.4-1+deb11u1 | vulnerable |
| bullseye (security) | 2.7.4-1+deb11u2 | vulnerable |
| ruby3.1 (PTS) | bookworm, bookworm (security) | 3.1.2-7+deb12u1 | vulnerable |
| sid, trixie | 3.1.2-8.4 | vulnerable |
| ruby3.2 (PTS) | sid | 3.2.3-1 | vulnerable |
| ruby3.3 (PTS) | sid, trixie | 3.3.5-2 | fixed |
The information below is based on the following data on fixed versions.
Notes
[bookworm] - ruby3.1 <no-dsa> (Minor issue)
[bullseye] - ruby2.7 <postponed> (Minor issue, DoS)
https://github.com/ruby/rexml/security/advisories/GHSA-vmwr-mc7x-5vc3