| Name | CVE-2016-7433 |
| Description | NTP before 4.2.8p9 does not properly perform the initial sync calculations, which allows remote attackers to unspecified impact via unknown vectors, related to a "root distance that did not include the peer dispersion." |
| 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 |
|---|
| 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 | Urgency | Origin | Debian Bugs |
|---|
| ntp | source | wheezy | (not affected) | | | |
| ntp | source | jessie | (not affected) | | | |
| ntp | source | (unstable) | 1:4.2.8p9+dfsg-1 | | | |
Notes
[jessie] - ntp <not-affected> (Vulnerable code introduced in ntp-4.2.7p385)
[wheezy] - ntp <not-affected> (Vulnerable code introduced in ntp-4.2.7p385)
http://support.ntp.org/bin/view/Main/NtpBug3067
Although the CVE is only for the issue introduced by the fix for
http://bugs.ntp.org/show_bug.cgi?id=2085, he root-distance calculation
itself in general is incorrect in all version of ntp-4 until ntp-4.2.8p9