Name | CVE-2018-7170 |
Description | ntpd in ntp 4.2.x before 4.2.8p7 and 4.3.x before 4.3.92 allows authenticated users that know the private symmetric key to create arbitrarily-many ephemeral associations in order to win the clock selection of ntpd and modify a victim's clock via a Sybil attack. This issue exists because of an incomplete fix for CVE-2016-1549. |
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) | bullseye | 1:4.2.8p15+dfsg-1 | fixed |
ntpsec (PTS) | bullseye | 1.2.0+dfsg1-4 | fixed |
| bookworm, bookworm (security) | 1.2.2+dfsg1-1+deb12u1 | fixed |
| sid, trixie | 1.2.3+dfsg1-3 | fixed |
The information below is based on the following data on fixed versions.
Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
---|
ntp | source | (unstable) | 1:4.2.8p11+dfsg-1 | | | |
ntpsec | source | (unstable) | (not affected) | | | |
Notes
[stretch] - ntp <no-dsa> (Minor issue)
[jessie] - ntp <no-dsa> (Minor issue)
[wheezy] - ntp <no-dsa> (Minor issue)
- ntpsec <not-affected> (Issue not present)
http://www.kb.cert.org/vuls/id/961909
http://support.ntp.org/bin/view/Main/NtpBug3415
http://support.ntp.org/bin/view/Main/SecurityNotice#February_2018_ntp_4_2_8p11_NTP_S