During browser shutdown, reference decrementing could have occured on a previously freed object, resulting in a use-after-free, memory corruption, and a potentially exploitable crash. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5.
References
| Link | Resource |
|---|---|
| https://bugzilla.mozilla.org/show_bug.cgi?id=1669466 | Issue Tracking Permissions Required Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2020-50/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2020-51/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2020-52/ | Vendor Advisory |
| https://bugzilla.mozilla.org/show_bug.cgi?id=1669466 | Issue Tracking Permissions Required Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2020-50/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2020-51/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2020-52/ | Vendor Advisory |
Configurations
Configuration 1 (hide)
|
History
21 Nov 2024, 05:20
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://bugzilla.mozilla.org/show_bug.cgi?id=1669466 - Issue Tracking, Permissions Required, Vendor Advisory | |
| References | () https://www.mozilla.org/security/advisories/mfsa2020-50/ - Vendor Advisory | |
| References | () https://www.mozilla.org/security/advisories/mfsa2020-51/ - Vendor Advisory | |
| References | () https://www.mozilla.org/security/advisories/mfsa2020-52/ - Vendor Advisory |
Information
Published : 2020-12-09 01:15
Updated : 2024-11-21 05:20
NVD link : CVE-2020-26959
Mitre link : CVE-2020-26959
CVE.ORG link : CVE-2020-26959
JSON object : View
Products Affected
mozilla
- thunderbird
- firefox_esr
- firefox
CWE
CWE-416
Use After Free