Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 82.0 |
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1666568Issue TrackingPermissions RequiredVendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-45/Release NotesVendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1666568Issue TrackingPermissions RequiredVendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-45/Release NotesVendor Advisory
FAQ
What is CVE-2020-15681?
CVE-2020-15681 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 potentiall...
How severe is CVE-2020-15681?
CVE-2020-15681 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-15681?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox.