CVE-2016-8635

Name	CVE-2016-8635
Description	It was found that Diffie Hellman Client key exchange handling in NSS 3.21.x was vulnerable to small subgroup confinement attack. An attacker could use this flaw to recover private keys by confining the client DH key to small subgroup of the desired group.
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)
NVD severity	medium (attack range: remote)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
nss (PTS)	jessie (security), jessie	2:3.26-1+debu8u3	fixed
	stretch (security), stretch	2:3.26.2-1.1+deb9u1	fixed
	buster	2:3.40-1	fixed
	sid	2:3.41-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
nss	source	(unstable)	2:3.25-1	medium

Notes

Patch as applied in CentOS (but contains other changes):
https://git.centos.org/blob/rpms!nss!/aada6b10b73091276397404059605d13e7548462/SOURCES!moz-1314604.patch
Further info: https://bugzilla.redhat.com/show_bug.cgi?id=1391818
Upstream bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1314604