CVE-2021-43537

Summary

An incorrect type conversion of sizes from 64bit to 32bit integers allowed an attacker to corrupt memory leading to a potentially exploitable crash. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.

Affected Software

VendorProductVersion RangeStatus
MozillaThunderbirdunspecified < 91.4.0affected
MozillaFirefox ESRunspecified < 91.4.0affected
MozillaFirefoxunspecified < 95affected

Weaknesses

  • Heap buffer overflow when using structured clone

ADP Enrichment

CVE Program Container

Additional References

References