CVE-2016-5259

Name	CVE-2016-5259
Description	Use-after-free vulnerability in the CanonicalizeXPCOMParticipant function in Mozilla Firefox before 48.0 and Firefox ESR 45.x before 45.3 allows remote attackers to execute arbitrary code via a script that closes its own Service Worker within a nested sync event loop.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
References	DLA-585-1, DSA-3640-1
NVD severity	medium

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
firefox (PTS)	sid	90.0-1	fixed
firefox-esr (PTS)	stretch	68.10.0esr-1~deb9u1	fixed
	stretch (security)	78.12.0esr-1~deb9u1	fixed
	buster	78.11.0esr-1~deb10u1	fixed
	buster (security)	78.12.0esr-1~deb10u1	fixed
	bullseye, sid	78.12.0esr-1	fixed

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

Package	Type	Release	Fixed Version	Origin
firefox	source	(unstable)	48.0-1
firefox-esr	source	wheezy	45.3.0esr-1~deb7u1	DLA-585-1
firefox-esr	source	jessie	45.3.0esr-1~deb8u1	DSA-3640-1
firefox-esr	source	(unstable)	45.3.0esr-1

https://www.mozilla.org/en-US/security/advisories/mfsa2016-73/