CVE Vulnerability

CVE-2021-29945

The WebAssembly JIT could miscalculate the size of a return type, which could lead to a null read and result in a crash. *Note: This issue only affected x86-32 platforms. Other platforms are unaffected.*. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.

4.3 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

6.5 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=1700690 Issue Tracking Permissions Required
https://www.mozilla.org/security/advisories/mfsa2021-15/ Release Notes Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-16/ Release Notes Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-14/ Release Notes Vendor Advisory
Configurations

Configuration 1

cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:x86:*
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:x86:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:x86:*
Information

Published : 2021-06-24 02:15

Updated : 2021-06-30 07:01

NVD link : CVE-2021-29945

Mitre link : CVE-2021-29945

Products Affected
No products.
CWE
CWE-682