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.

References

https://www.mozilla.org/security/advisories/mfsa2020-45/

https://bugzilla.mozilla.org/show_bug.cgi?id=1666568

Details

Source: Mitre, NVD

Published: 2020-10-22

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity: High