CVE-2024-27281

NameCVE-2024-27281
DescriptionAn issue was discovered in RDoc 6.3.3 through 6.6.2, as distributed in Ruby 3.x through 3.3.0. When parsing .rdoc_options (used for configuration in RDoc) as a YAML file, object injection and resultant remote code execution are possible because there are no restrictions on the classes that can be restored. (When loading the documentation cache, object injection and resultant remote code execution are also possible if there were a crafted cache.) The main fixed version is 6.6.3.1. For Ruby 3.0 users, a fixed version is rdoc 6.3.4.1. For Ruby 3.1 users, a fixed version is rdoc 6.4.1.1. For Ruby 3.2 users, a fixed version is rdoc 6.5.1.1.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-3858-1, DSA-5677-1, ELA-1148-1, ELA-1149-1, ELA-1150-1
Debian Bugs1067802, 1067803

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
ruby2.1 (PTS)jessie, jessie (lts)2.1.5-2+deb8u14fixed
ruby2.3 (PTS)stretch (security)2.3.3-1+deb9u11vulnerable
stretch (lts), stretch2.3.3-1+deb9u12fixed
ruby2.5 (PTS)buster, buster (lts)2.5.5-3+deb10u7fixed
buster (security)2.5.5-3+deb10u6vulnerable
ruby2.7 (PTS)bullseye2.7.4-1+deb11u1vulnerable
bullseye (security)2.7.4-1+deb11u2fixed
ruby3.1 (PTS)bookworm (security), bookworm3.1.2-7+deb12u1fixed
sid, trixie3.1.2-8.4vulnerable
ruby3.2 (PTS)sid3.2.3-1vulnerable

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
ruby2.1sourcejessie2.1.5-2+deb8u14ELA-1148-1
ruby2.1source(unstable)(unfixed)
ruby2.3sourcestretch2.3.3-1+deb9u12ELA-1149-1
ruby2.3source(unstable)(unfixed)
ruby2.5sourcebuster2.5.5-3+deb10u7ELA-1150-1
ruby2.5source(unstable)(unfixed)
ruby2.7sourcebullseye2.7.4-1+deb11u2DLA-3858-1
ruby2.7source(unstable)(unfixed)
ruby3.1sourcebookworm3.1.2-7+deb12u1DSA-5677-1
ruby3.1source(unstable)(unfixed)1067803
ruby3.2source(unstable)(unfixed)1067802

Notes

https://www.ruby-lang.org/en/news/2024/03/21/rce-rdoc-cve-2024-27281/
https://github.com/ruby/rdoc/commit/da7a0c7553ef7250ca665a3fecdc01dbaacbb43d (v6.6.3)
Follow-up: https://github.com/ruby/rdoc/commit/e4a0e71e6f1032f8b4e5e58b4ef60d702c22ce17 (v6.6.3.1)

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