CVE-2020-15681

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.

7.5

CVSS

Severity: High

CVSS 3.1 •

CVSS 2.0 •

EPSS 0.43%

Vendor Advisory mozilla.org Vendor Advisory mozilla.org

Affected: Mozilla Firefox

References

Link	Tags
https://www.mozilla.org/security/advisories/mfsa2020-45/	release notes vendor advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1666568	issue tracking permissions required vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-15681?: CVE-2020-15681 has been scored as a high severity vulnerability.
How to fix CVE-2020-15681?: To fix CVE-2020-15681, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-15681 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2020-15681 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-15681?: CVE-2020-15681 affects Mozilla Firefox.

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