CVE-2016-5284

Name	CVE-2016-5284
Description	Mozilla Firefox before 49.0, Firefox ESR 45.x before 45.4, and Thunderbird < 45.4 rely on unintended expiration dates for Preloaded Public Key Pinning, which allows man-in-the-middle attackers to spoof add-on updates by leveraging possession of an X.509 server certificate for addons.mozilla.org signed by an arbitrary built-in Certification Authority.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-636-1, DSA-3674-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
firefox (PTS)	sid	156.0-1	fixed
firefox-esr (PTS)	bookworm	140.12.0esr-1~deb12u1	fixed
	bookworm (security)	140.16.0esr-1~deb12u1	fixed
	trixie	140.15.0esr-1~deb13u1	fixed
	trixie (security)	140.16.0esr-1~deb13u1	fixed
	forky	140.15.0esr-1	fixed
	sid	140.16.0esr-1	fixed

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

Package	Type	Release	Fixed Version	Origin
firefox	source	(unstable)	49.0-1
firefox-esr	source	wheezy	45.4.0esr-1~deb7u1	DLA-636-1
firefox-esr	source	jessie	45.4.0esr-1~deb8u2	DSA-3674-1
firefox-esr	source	(unstable)	45.4.0esr-1

https://www.mozilla.org/en-US/security/advisories/mfsa2016-86/
https://www.mozilla.org/en-US/security/advisories/mfsa2016-87/