{"id":"UBUNTU-CVE-2022-23517","details":"rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. Certain configurations of rails-html-sanitizer \u003c 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.","modified":"2026-05-20T16:07:48.007411974Z","published":"2022-12-14T17:15:00Z","upstream":["CVE-2022-23517"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-23517"},{"type":"REPORT","url":"https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-5x79-w82f-gw8w"},{"type":"REPORT","url":"https://github.com/rails/rails-html-sanitizer/commit/56c61c0cebd1e493e8ad7bca2a0191609a4a6979"},{"type":"REPORT","url":"https://hackerone.com/reports/1684163"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2022-23517"}],"affected":[{"package":{"name":"ruby-rails-html-sanitizer","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/ruby-rails-html-sanitizer?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.2-1","1.0.3-1","1.0.3-2"],"ecosystem_specific":{"binaries":[{"binary_name":"ruby-rails-html-sanitizer","binary_version":"1.0.3-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-23517.json"}},{"package":{"name":"ruby-rails-html-sanitizer","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/ruby-rails-html-sanitizer?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.3-2","1.0.4-1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.0.4-1","binary_name":"ruby-rails-html-sanitizer"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-23517.json"}},{"package":{"name":"ruby-rails-html-sanitizer","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/ruby-rails-html-sanitizer?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.4-1","1.3.0-1"],"ecosystem_specific":{"binaries":[{"binary_name":"ruby-rails-html-sanitizer","binary_version":"1.3.0-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-23517.json"}},{"package":{"name":"ruby-rails-html-sanitizer","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/ruby-rails-html-sanitizer?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3.0-2","1.4.2-1","1.4.2-2"],"ecosystem_specific":{"binaries":[{"binary_name":"ruby-rails-html-sanitizer","binary_version":"1.4.2-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-23517.json"}},{"package":{"name":"ruby-rails-html-sanitizer","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/ruby-rails-html-sanitizer?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.4-1"],"ecosystem_specific":{"binaries":[{"binary_name":"ruby-rails-html-sanitizer","binary_version":"1.4.4-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-23517.json"}},{"package":{"name":"ruby-rails-html-sanitizer","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/ruby-rails-html-sanitizer?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.4-1","1.6.2-1"],"ecosystem_specific":{"binaries":[{"binary_name":"ruby-rails-html-sanitizer","binary_version":"1.6.2-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-23517.json"}},{"package":{"name":"ruby-rails-html-sanitizer","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/ruby-rails-html-sanitizer?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.6.2-1"],"ecosystem_specific":{"binaries":[{"binary_name":"ruby-rails-html-sanitizer","binary_version":"1.6.2-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-23517.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}