Inefficient Regular Expression Complexity Affecting ruby-rails-html-sanitizer package, versions <1.4.4-1
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Test your applications- Snyk ID SNYK-DEBIANUNSTABLE-RUBYRAILSHTMLSANITIZER-3172431
- published 15 Dec 2022
- disclosed 14 Dec 2022
Introduced: 14 Dec 2022
CVE-2022-23517 Open this link in a new tabHow to fix?
Upgrade Debian:unstable ruby-rails-html-sanitizer to version 1.4.4-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream ruby-rails-html-sanitizer package and not the ruby-rails-html-sanitizer package as distributed by Debian.
See How to fix? for Debian:unstable relevant fixed versions and status.
rails-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.
References
- https://security-tracker.debian.org/tracker/CVE-2022-23517
- https://hackerone.com/reports/1684163
- https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-5x79-w82f-gw8w
- https://github.com/rails/rails-html-sanitizer/commit/56c61c0cebd1e493e8ad7bca2a0191609a4a6979
- https://lists.debian.org/debian-lts-announce/2023/09/msg00012.html