CVE-2019-9794

Name	CVE-2019-9794
Description	A vulnerability was discovered where specific command line arguments are not properly discarded during Firefox invocation as a shell handler for URLs. This could be used to retrieve and execute files whose location is supplied through these command line arguments if Firefox is configured as the default URI handler for a given URI scheme in third party applications and these applications insufficiently sanitize URL data. Note: This issue only affects Windows operating systems. Other operating systems are unaffected.. This vulnerability affects Thunderbird < 60.6, Firefox ESR < 60.6, and Firefox < 66.
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	133.0.3-1	fixed
firefox-esr (PTS)	bullseye	115.14.0esr-1~deb11u1	fixed
	bullseye (security)	128.5.0esr-1~deb11u1	fixed
	bookworm	128.3.1esr-1~deb12u1	fixed
	bookworm (security)	128.5.0esr-1~deb12u1	fixed
	trixie	128.5.0esr-1	fixed
	sid	128.5.1esr-1	fixed
thunderbird (PTS)	bullseye	1:115.12.0-1~deb11u1	fixed
	bullseye (security)	1:128.5.0esr-1~deb11u1	fixed
	bookworm	1:115.16.0esr-1~deb12u1	fixed
	bookworm (security)	1:128.5.0esr-1~deb12u1	fixed
	sid, trixie	1:128.5.2esr-1	fixed

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

Package	Type	Release	Fixed Version
firefox	source	(unstable)	(not affected)
firefox-esr	source	(unstable)	(not affected)
thunderbird	source	(unstable)	(not affected)

Notes

- firefox-esr <not-affected> (Windows-specific)
- firefox <not-affected> (Windows-specific)
- thunderbird <not-affected> (Windows-specific)
https://www.mozilla.org/en-US/security/advisories/mfsa2019-08/#CVE-2019-9794
https://www.mozilla.org/en-US/security/advisories/mfsa2019-07/#CVE-2019-9794
https://www.mozilla.org/en-US/security/advisories/mfsa2019-11/#CVE-2019-9794