CVE-2022-31103

Summary

lettersanitizer is a DOM-based HTML email sanitizer for in-browser email rendering. All versions of lettersanitizer below 1.0.2 are affected by a denial of service issue when processing a CSS at-rule @keyframes. This package is depended on by react-letter, therefore everyone using react-letter is also at risk. The problem has been patched in version 1.0.2.

Affected Software

Weaknesses

• CWE-754: CWE-754: Improper Check for Unusual or Exceptional Conditions

ADP Enrichment

CVE Program Container

Additional References

• https://github.com/mat-sz/lettersanitizer/security/advisories/GHSA-7r3r-gq8p-v9jj
• https://github.com/mat-sz/react-letter/issues/17
• https://github.com/mat-sz/lettersanitizer/commit/96d3dfe2ef0465d47324ed4d13e91ba0816a173f

CISA ADP Vulnrichment

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

References

• https://github.com/mat-sz/lettersanitizer/security/advisories/GHSA-7r3r-gq8p-v9jj
• https://github.com/mat-sz/react-letter/issues/17
• https://github.com/mat-sz/lettersanitizer/commit/96d3dfe2ef0465d47324ed4d13e91ba0816a173f

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