VulnerabilityModified
CVE-2022-23517
This may lead to a denial of service through CPU resource consumption.
HIGH 7.5EPSS 1.45%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.45%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.45% probability · 72th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-1333
- Affected
- rubyonrails/rails html sanitizers · debian/debian linux
- Source
- security-advisories@github.com
References
- https://github.com/rails/rails-html-sanitizer/commit/56c61c0cebd1e493e8ad7bca2a0191609a4a6979Patch, Third Party Advisory
- https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-5x79-w82f-gw8wThird Party Advisory
- https://hackerone.com/reports/1684163Permissions Required, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/09/msg00012.htmlMailing List, Third Party Advisory
- https://github.com/rails/rails-html-sanitizer/commit/56c61c0cebd1e493e8ad7bca2a0191609a4a6979Patch, Third Party Advisory
- https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-5x79-w82f-gw8wThird Party Advisory
- https://hackerone.com/reports/1684163Permissions Required, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/09/msg00012.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2024/09/msg00045.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.