Given a compromised sandboxed content process due to a separate vulnerability, it is possible to escape that sandbox by loading accounts.firefox.com in that process and forcing a log-in to a malicious Firefox Sync account. Preference settings that disable the sandbox are then synchronized to the local machine and the compromised browser would restart without the sandbox if a crash is triggered. This vulnerability affects Firefox ESR < 60.9, Firefox ESR < 68.1, and Firefox < 69.
Metrics
Affected Vendors & Products
References
History
Tue, 25 Nov 2025 18:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | ||
| Vendors & Products |
Mozilla firefox Esr
|
Status: PUBLISHED
Assigner: mozilla
Published: 2020-01-08T21:41:06
Updated: 2024-08-04T22:01:54.689Z
Reserved: 2019-03-14T00:00:00
Link: CVE-2019-9812
No data.
Status : Modified
Published: 2020-01-08T22:15:13.310
Modified: 2025-11-25T17:50:16.803
Link: CVE-2019-9812