CVE-2020-15681 Information

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 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

https://bugzilla.mozilla.org/show_bug.cgi?id=1666568 https://www.mozilla.org/security/advisories/mfsa2020-45/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5