CVE-2021-23997

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Summary

CVECVE-2021-23997
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-06-24 14:15:00 UTC
Updated2021-07-02 17:21:00 UTC
DescriptionDue to unexpected data type conversions, a use-after-free could have occurred when interacting with the font cache. We presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox < 88.

Risk And Classification

Problem Types: CWE-681

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Mozilla Firefox All All All All

References

ReferenceSourceLinkTags
Access Denied MISC bugzilla.mozilla.org
Security Vulnerabilities fixed in Firefox 88 — Mozilla MISC www.mozilla.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 198342 Ubuntu Security Notification for Firefox vulnerabilities (USN-4926-1)
  • 375478 Mozilla Firefox Multiple Vulnerabilities (MFSA2021-16)
  • 501556 Alpine Linux Security Update for firefox
  • 503847 Alpine Linux Security Update for firefox
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