CVEvulnerability
CVE-2019-9812
9.3 CRITICAL
Official page ↗
- Status
- Modified
- Published
- 2020-01-08
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 9.3 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:H
- CVSS 2.0 ([email protected])
- 5.8 MEDIUM — AV:N/AC:M/Au:N/C:N/I:P/A:P
Description
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.
Affected configurations
• mozilla firefox (< 60.9)
• mozilla firefox (< 69.0)
• mozilla firefox (>= 61.0 < 68.1)
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1538008 Permissions Required
- https://bugzilla.mozilla.org/show_bug.cgi?id=1538015 Permissions Required
- https://www.mozilla.org/security/advisories/mfsa2019-25/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2019-26/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2019-27/ Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1538008 Permissions Required
- https://bugzilla.mozilla.org/show_bug.cgi?id=1538015 Permissions Required
- https://www.mozilla.org/security/advisories/mfsa2019-25/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2019-26/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2019-27/ Vendor Advisory