CVE-2019-9812

CVE-2019-9812: vulnerability in Mozilla Firefox

Published 08 Jan 2020 · Updated 04 Aug 2024

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3Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackepss 1.5%

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 products

Mozilla · Firefox Mozilla · Firefox ESR

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References

https://bugzilla.mozilla.org/show_bug.cgi?id=1538008 https://bugzilla.mozilla.org/show_bug.cgi?id=1538015 https://www.mozilla.org/security/advisories/mfsa2019-25/https://www.mozilla.org/security/advisories/mfsa2019-26/https://www.mozilla.org/security/advisories/mfsa2019-27/