CVE-2019-11753

Name	CVE-2019-11753
Description	The Firefox installer allows Firefox to be installed to a custom user writable location, leaving it unprotected from manipulation by unprivileged users or malware. If the Mozilla Maintenance Service is manipulated to update this unprotected location and the updated maintenance service in the unprotected location has been altered, the altered maintenance service can run with elevated privileges during the update process due to a lack of integrity checks. This allows for privilege escalation if the executable has been replaced locally. <br>Note: This attack requires local system access and only affects Windows. Other operating systems are not affected.. This vulnerability affects Firefox < 69, Firefox ESR < 60.9, and Firefox ESR < 68.1.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
firefox (PTS)	sid	124.0.1-1	fixed
firefox-esr (PTS)	buster	91.12.0esr-1~deb10u1	fixed
	buster (security)	115.9.1esr-1~deb10u1	fixed
	bullseye	115.7.0esr-1~deb11u1	fixed
	bullseye (security)	115.9.1esr-1~deb11u1	fixed
	bookworm	115.7.0esr-1~deb12u1	fixed
	bookworm (security)	115.9.1esr-1~deb12u1	fixed
	trixie	115.8.0esr-1	fixed
	sid	115.9.1esr-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
firefox	source	(unstable)	(not affected)
firefox-esr	source	(unstable)	(not affected)

Notes

- firefox <not-affected> (Windows-specific)
- firefox-esr <not-affected> (Windows-specific)
https://www.mozilla.org/en-US/security/advisories/mfsa2019-25/#CVE-2019-11753
https://www.mozilla.org/en-US/security/advisories/mfsa2019-26/#CVE-2019-11753
https://www.mozilla.org/en-US/security/advisories/mfsa2019-27/#CVE-2019-11753
https://www.mozilla.org/en-US/security/advisories/mfsa2019-29/#CVE-2019-11753