vulnerability
Arch Linux: Sandbox escape (CVE-2019-9812)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 6 | (AV:N/AC:M/Au:N/C:N/I:P/A:P) | Jan 8, 2020 | Jul 11, 2025 | Nov 27, 2025 |
Severity
6
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:P)
Published
Jan 8, 2020
Added
Jul 11, 2025
Modified
Nov 27, 2025
Description
In Firefox before 69.0, 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.
Solution
arch-linux-upgrade-latest
References
- CVE-2019-9812
- https://attackerkb.com/topics/CVE-2019-9812
- URL-https://bugzilla.mozilla.org/show_bug.cgi?id=1538008
- URL-https://bugzilla.mozilla.org/show_bug.cgi?id=1538015
- URL-https://security.archlinux.org/ASA-201909-2
- URL-https://www.mozilla.org/en-US/security/advisories/mfsa2019-25/
- URL-https://www.mozilla.org/security/advisories/mfsa2019-25/
- URL-https://www.mozilla.org/security/advisories/mfsa2019-26/
- URL-https://www.mozilla.org/security/advisories/mfsa2019-27/
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