CVE-2020-15681
First published: Tue Oct 20 2020(Updated: )
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.
Credit: security@mozilla.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Mozilla Firefox | <82 | 82 |
| <82 | 82 | |
| Mozilla Firefox | <82.0 |
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Reference Links
Peer vulnerabilities
(Found alongside the following vulnerabilities)
Frequently Asked Questions
What is CVE-2020-15681?
CVE-2020-15681 is a vulnerability that allows one WASM thread to overwrite another's entry in a shared stub table in Mozilla Firefox, potentially leading to a crash.
What is the severity of CVE-2020-15681?
CVE-2020-15681 has a severity level of medium (4) in Mozilla Firefox.
How does the CVE-2020-15681 vulnerability occur?
The CVE-2020-15681 vulnerability occurs when multiple WASM threads have a reference to a module and are looking up exported functions, causing one WASM thread to overwrite another's entry in a shared stub table.
Which software is affected by CVE-2020-15681?
Mozilla Firefox version up to exclusive 82 is affected by CVE-2020-15681.
How can I fix CVE-2020-15681?
To fix CVE-2020-15681, update your Mozilla Firefox to version 82 or later.
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