CVE-2019-9812

Name	CVE-2019-9812
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.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
References	DLA-1910-1, DSA-4516-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
firefox (PTS)	sid	111.0-3	fixed
firefox-esr (PTS)	buster	91.12.0esr-1~deb10u1	fixed
	buster (security)	102.9.0esr-1~deb10u1	fixed
	bullseye	91.13.0esr-1~deb11u1	fixed
	bullseye (security)	102.9.0esr-1~deb11u1	fixed
	bookworm, sid	102.9.0esr-2	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Origin
firefox	source	(unstable)	69.0-1
firefox-esr	source	jessie	60.9.0esr-1~deb8u1	DLA-1910-1
firefox-esr	source	stretch	60.9.0esr-1~deb9u1	DSA-4516-1
firefox-esr	source	buster	60.9.0esr-1~deb10u1	DSA-4516-1
firefox-esr	source	(unstable)	68.1.0esr-1

Notes

https://www.mozilla.org/en-US/security/advisories/mfsa2019-25/#CVE-2019-9812
https://www.mozilla.org/en-US/security/advisories/mfsa2019-26/#CVE-2019-9812
https://www.mozilla.org/en-US/security/advisories/mfsa2019-27/#CVE-2019-9812