CVE Vulnerability

CVE-2021-23995

When Responsive Design Mode was enabled, it used references to objects that were previously freed. We presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.

5.1 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 4.9 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

8.8 /10

CVSS v3.0 : HIGH

V3 Legend

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

References
Link Resource
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
https://bugzilla.mozilla.org/show_bug.cgi?id=1699835 Issue Tracking Permissions Required
Configurations

Configuration 1

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

Published : 2021-06-24 02:15

Updated : 2021-07-02 04:59

NVD link : CVE-2021-23995

Mitre link : CVE-2021-23995

Products Affected
No products.
CWE
CWE-672