CVE-2021-4129

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-4129
Mozilla developers and community members Julian Hector, Randell Jesup, Gabriele Svelto, Tyson Smith, Christian Holler, and Masayuki Nakano reported memory safety bugs present in Firefox 94. 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 < 95, Firefox ESR < 91.4.0, and Thunderbird < 91.4.0.

9.8 /10

CVSS v3 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1393362%2C1736046%2C1736751%2C1737009%2C1739372%2C1739421 Exploit Issue Tracking Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-52/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-53/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-54/ Vendor Advisory
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1393362%2C1736046%2C1736751%2C1737009%2C1739372%2C1739421 Exploit Issue Tracking Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-52/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-53/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-54/ Vendor Advisory
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
History

21 Nov 2024, 06:36

Type Values Removed Values Added
References () https://bugzilla.mozilla.org/buglist.cgi?bug_id=1393362%2C1736046%2C1736751%2C1737009%2C1739372%2C1739421 - Exploit, Issue Tracking, Vendor Advisory () https://bugzilla.mozilla.org/buglist.cgi?bug_id=1393362%2C1736046%2C1736751%2C1737009%2C1739372%2C1739421 - Exploit, Issue Tracking, Vendor Advisory
References () https://www.mozilla.org/security/advisories/mfsa2021-52/ - Vendor Advisory () https://www.mozilla.org/security/advisories/mfsa2021-52/ - Vendor Advisory
References () https://www.mozilla.org/security/advisories/mfsa2021-53/ - Vendor Advisory () https://www.mozilla.org/security/advisories/mfsa2021-53/ - Vendor Advisory
References () https://www.mozilla.org/security/advisories/mfsa2021-54/ - Vendor Advisory () https://www.mozilla.org/security/advisories/mfsa2021-54/ - Vendor Advisory

08 Aug 2023, 14:21

Type Values Removed Values Added
CPE cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 9.8
CWE CWE-787
References (MISC) https://www.mozilla.org/security/advisories/mfsa2021-53/ - (MISC) https://www.mozilla.org/security/advisories/mfsa2021-53/ - Vendor Advisory
References (MISC) https://bugzilla.mozilla.org/buglist.cgi?bug_id=1393362%2C1736046%2C1736751%2C1737009%2C1739372%2C1739421 - (MISC) https://bugzilla.mozilla.org/buglist.cgi?bug_id=1393362%2C1736046%2C1736751%2C1737009%2C1739372%2C1739421 - Exploit, Issue Tracking, Vendor Advisory
References (MISC) https://www.mozilla.org/security/advisories/mfsa2021-52/ - (MISC) https://www.mozilla.org/security/advisories/mfsa2021-52/ - Vendor Advisory
References (MISC) https://www.mozilla.org/security/advisories/mfsa2021-54/ - (MISC) https://www.mozilla.org/security/advisories/mfsa2021-54/ - Vendor Advisory

22 Dec 2022, 20:15

Type Values Removed Values Added
New CVE
Information

Published : 2022-12-22 20:15

Updated : 2025-04-16 16:15

NVD link : CVE-2021-4129

Mitre link : CVE-2021-4129

CVE.ORG link : CVE-2021-4129

JSON object : View

Products Affected

mozilla

  • firefox_esr
  • firefox
  • thunderbird
CWE
CWE-787

Out-of-bounds Write