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CVE-2020-15681

High

Description

When multiple WASM threads had a reference to a module, and were looking up exported functions, one WASM thread could have overwritten another's entry in a shared stub table, resulting in a potentially exploitable crash. This vulnerability affects Firefox < 82.

SeverityHigh
CVSS7.5
Exploit probability—
ProductMozilla Firefox
PublishedOct 22, 2020
First seenOct 22, 2020

How to fix

Update
  • mozilla firefox82.0 or later

Affected products

ProductAffected versionsFixed in
mozilla firefoxv < 82.082.0

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