CVE-2022-23517

NameCVE-2022-23517
Descriptionrails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. Certain configurations of rails-html-sanitizer < 1.4.4 use an inefficient regular expression that is susceptible to excessive backtracking when attempting to sanitize certain SVG attributes. This may lead to a denial of service through CPU resource consumption. This issue has been patched in version 1.4.4.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-3566-1, DLA-3902-1
Debian Bugs1027153

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
ruby-rails-html-sanitizer (PTS)bullseye1.3.0-1vulnerable
bullseye (security)1.3.0-1+deb11u1fixed
sid, trixie, bookworm1.4.4-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
ruby-rails-html-sanitizersourcebuster1.0.4-1+deb10u2DLA-3566-1
ruby-rails-html-sanitizersourcebullseye1.3.0-1+deb11u1DLA-3902-1
ruby-rails-html-sanitizersource(unstable)1.4.4-11027153

Notes

https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-5x79-w82f-gw8w
https://github.com/rails/rails-html-sanitizer/commit/56c61c0cebd1e493e8ad7bca2a0191609a4a6979
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