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CVE PROGRAM SOURCE RECORDUnscored

CVE-2021-43539

Failure to correctly record the location of live pointers across wasm instance calls resulted in a GC occurring within the call not tracing those live pointers. This could have led

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Status
Published
Published
Updated
Assigning organization
mozilla

Description

Failure to correctly record the location of live pointers across wasm instance calls resulted in a GC occurring within the call not tracing those live pointers. This could have led to a use-after-free causing a potentially exploitable crash. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Mozilla Thunderbird

  • unspecified to < 91.4.0affected

Mozilla Firefox ESR

  • unspecified to < 91.4.0affected

Mozilla Firefox

  • unspecified to < 95affected

References