CVE-2021-38498

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-38498
During process shutdown, a document could have caused a use-after-free of a languages service object, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 93, Thunderbird < 91.2, and Firefox ESR < 91.2.

7.5 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

5.0 /10

CVSS v2.0 : MEDIUM

V2 Legend

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

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References
Link Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=1729642 Permissions Required Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-43/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-45/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-47/ Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1729642 Permissions Required Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-43/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-45/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-47/ 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, 06:17

Type Values Removed Values Added
References () https://bugzilla.mozilla.org/show_bug.cgi?id=1729642 - Permissions Required, Vendor Advisory () https://bugzilla.mozilla.org/show_bug.cgi?id=1729642 - Permissions Required, Vendor Advisory
References () https://www.mozilla.org/security/advisories/mfsa2021-43/ - Vendor Advisory () https://www.mozilla.org/security/advisories/mfsa2021-43/ - Vendor Advisory
References () https://www.mozilla.org/security/advisories/mfsa2021-45/ - Vendor Advisory () https://www.mozilla.org/security/advisories/mfsa2021-45/ - Vendor Advisory
References () https://www.mozilla.org/security/advisories/mfsa2021-47/ - Vendor Advisory () https://www.mozilla.org/security/advisories/mfsa2021-47/ - Vendor Advisory

04 Nov 2021, 20:29

Type Values Removed Values Added
CPE cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
CWE CWE-416
CVSS v2 : unknown
v3 : unknown 		v2 : 5.0
v3 : 7.5
References (MISC) https://www.mozilla.org/security/advisories/mfsa2021-47/ - (MISC) https://www.mozilla.org/security/advisories/mfsa2021-47/ - Vendor Advisory
References (MISC) https://bugzilla.mozilla.org/show_bug.cgi?id=1729642 - (MISC) https://bugzilla.mozilla.org/show_bug.cgi?id=1729642 - Permissions Required, Vendor Advisory
References (MISC) https://www.mozilla.org/security/advisories/mfsa2021-45/ - (MISC) https://www.mozilla.org/security/advisories/mfsa2021-45/ - Vendor Advisory
References (MISC) https://www.mozilla.org/security/advisories/mfsa2021-43/ - (MISC) https://www.mozilla.org/security/advisories/mfsa2021-43/ - Vendor Advisory

03 Nov 2021, 01:15

Type Values Removed Values Added
New CVE
Information

Published : 2021-11-03 01:15

Updated : 2024-11-21 06:17

NVD link : CVE-2021-38498

Mitre link : CVE-2021-38498

CVE.ORG link : CVE-2021-38498

JSON object : View

Products Affected

mozilla

  • firefox_esr
  • firefox
  • thunderbird
CWE
CWE-416

Use After Free