CVE-2014-9751

Name	CVE-2014-9751
Description	The read_network_packet function in ntp_io.c in ntpd in NTP 4.x before 4.2.8p1 on Linux and OS X does not properly determine whether a source IP address is an IPv6 loopback address, which makes it easier for remote attackers to spoof restricted packets, and read or write to the runtime state, by leveraging the ability to reach the ntpd machine's network interface with a packet from the ::1 address.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-149-1, DSA-3154-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
ntp (PTS)	jessie, jessie (lts)	1:4.2.6.p5+dfsg-7+deb8u3	fixed
	stretch	1:4.2.8p10+dfsg-3+deb9u2	fixed
	buster	1:4.2.8p12+dfsg-4	fixed
	bullseye	1:4.2.8p15+dfsg-1	fixed

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

Package	Type	Release	Fixed Version	Origin
ntp	source	squeeze	1:4.2.6.p2+dfsg-1+deb6u2	DLA-149-1
ntp	source	wheezy	1:4.2.6.p5+dfsg-2+deb7u2	DSA-3154-1
ntp	source	(unstable)	1:4.2.6.p5+dfsg-4

http://bugs.ntp.org/show_bug.cgi?id=2672 (not yet public)