CVE-2021-23965

Mozilla developers reported memory safety bugs present in Firefox 84. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 85.

CVSS v3 8.8 HIGH
CVSS v2.0 6.8 MEDIUM

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1670378%2C1673555%2C1676812%2C1678582%2C1684497	Exploit Issue Tracking Patch Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-03/	Release Notes Vendor Advisory

Configurations

Configuration 1 (hide)

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

History

03 May 2022, 16:04

Type	Values Removed	Values Added
CWE	~~CWE-119~~	CWE-787

04 Mar 2021, 17:59

Type	Values Removed	Values Added
References	~~(MISC) https://bugzilla.mozilla.org/buglist.cgi?bug_id=1670378%2C1673555%2C1676812%2C1678582%2C1684497 -~~	(MISC) https://bugzilla.mozilla.org/buglist.cgi?bug_id=1670378%2C1673555%2C1676812%2C1678582%2C1684497 - Exploit, Issue Tracking, Patch, Vendor Advisory
References	~~(MISC) https://www.mozilla.org/security/advisories/mfsa2021-03/ -~~	(MISC) https://www.mozilla.org/security/advisories/mfsa2021-03/ - Release Notes, Vendor Advisory
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : 6.8 v3 : 8.8
CWE		CWE-119
CPE		cpe:2.3:a:mozilla:firefox::::::::

26 Feb 2021, 16:59

Type	Values Removed	Values Added
New CVE

Information

Published : 2021-02-26 16:15

Updated : 2023-12-10 13:41

NVD link : CVE-2021-23965

Mitre link : CVE-2021-23965

CVE.ORG link : CVE-2021-23965

JSON object : View

Products Affected

mozilla

firefox

CWE

CWE-787

Out-of-bounds Write

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