CVE-2020-15681

high
New! CVE Severity Now Using CVSS v3

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

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

Details

Source: MITRE

Published: 2020-10-22

Updated: 2020-10-30

Risk Information

CVSS v2

Base Score: 5

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

Impact Score: 2.9

Exploitability Score: 10

Severity: MEDIUM

CVSS v3

Base Score: 7.5

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

Impact Score: 3.6

Exploitability Score: 3.9

Severity: HIGH

Vulnerable Software

Configuration 1

OR

cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*

Tenable Plugins

View all (4 total)

IDNameProductFamilySeverity
141923Ubuntu 16.04 LTS : Firefox vulnerabilities (USN-4599-2)NessusUbuntu Local Security Checks
critical
141863Ubuntu 18.04 LTS / 20.04 LTS / 20.10 : Firefox vulnerabilities (USN-4599-1)NessusUbuntu Local Security Checks
critical
141572Mozilla Firefox < 82.0NessusMacOS X Local Security Checks
critical
141571Mozilla Firefox < 82.0NessusWindows
critical