CVE-2022-23517

Summary

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.

Affected Software

Weaknesses

• CWE-1333: CWE-1333: Inefficient Regular Expression Complexity

ADP Enrichment

CVE Program Container

Additional References

• https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-5x79-w82f-gw8w
• https://github.com/rails/rails-html-sanitizer/commit/56c61c0cebd1e493e8ad7bca2a0191609a4a6979
• https://hackerone.com/reports/1684163
• https://lists.debian.org/debian-lts-announce/2023/09/msg00012.html
• https://lists.debian.org/debian-lts-announce/2024/09/msg00045.html

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: yes
  • Technical Impact: partial

References

• https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-5x79-w82f-gw8w
• https://github.com/rails/rails-html-sanitizer/commit/56c61c0cebd1e493e8ad7bca2a0191609a4a6979
• https://hackerone.com/reports/1684163
• https://lists.debian.org/debian-lts-announce/2023/09/msg00012.html

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