Using the new logical assignment operators in a JavaScript switch statement could have caused a type confusion, leading to a memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 85, Thunderbird < 78.7, and Firefox ESR < 78.7.
References
| Link | Resource |
|---|---|
| https://bugzilla.mozilla.org/show_bug.cgi?id=1684020 | Issue Tracking Permissions Required Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2021-03/ | Release Notes Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2021-04/ | Release Notes Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2021-05/ | Release Notes Vendor Advisory |
| https://bugzilla.mozilla.org/show_bug.cgi?id=1684020 | Issue Tracking Permissions Required Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2021-03/ | Release Notes Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2021-04/ | Release Notes Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2021-05/ | Release Notes Vendor Advisory |
Configurations
Configuration 1 (hide)
|
History
21 Nov 2024, 05:52
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://bugzilla.mozilla.org/show_bug.cgi?id=1684020 - Issue Tracking, Permissions Required, Vendor Advisory | |
| References | () https://www.mozilla.org/security/advisories/mfsa2021-03/ - Release Notes, Vendor Advisory | |
| References | () https://www.mozilla.org/security/advisories/mfsa2021-04/ - Release Notes, Vendor Advisory | |
| References | () https://www.mozilla.org/security/advisories/mfsa2021-05/ - Release Notes, Vendor Advisory |
Information
Published : 2021-02-26 03:15
Updated : 2024-11-21 05:52
NVD link : CVE-2021-23954
Mitre link : CVE-2021-23954
CVE.ORG link : CVE-2021-23954
JSON object : View
Products Affected
mozilla
- thunderbird
- firefox
- firefox_esr
CWE
CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')