CVE Vulnerability

CVE-2020-12387

A race condition when running shutdown code for Web Worker led to a use-after-free vulnerability. This resulted in a potentially exploitable crash. This vulnerability affects Firefox ESR < 68.8, Firefox < 76, and Thunderbird < 68.8.0.

6.8 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

8.1 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 2.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://www.mozilla.org/security/advisories/mfsa2020-17/ Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2020-18/ Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2020-16/ Third Party Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1545345 Issue Tracking Permissions Required
https://usn.ubuntu.com/4373-1/ Broken Link
https://security.gentoo.org/glsa/202005-03 Third Party Advisory
https://security.gentoo.org/glsa/202005-04 Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
Information

Published : 2020-05-26 06:15

Updated : 2021-12-14 08:23

NVD link : CVE-2020-12387

Mitre link : CVE-2020-12387

Products Affected
No products.
CWE
CWE-362

CWE-416