| Name | CVE-2015-8138 |
| Description | NTP before 4.2.8p6 and 4.3.x before 4.3.90 allows remote attackers to bypass the origin timestamp validation via a packet with an origin timestamp set to zero. |
| 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-559-1, DSA-3629-1 |
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 | Urgency | Origin | Debian Bugs |
|---|
| ntp | source | wheezy | 1:4.2.6.p5+dfsg-2+deb7u7 | | DLA-559-1 | |
| ntp | source | jessie | 1:4.2.6.p5+dfsg-7+deb8u2 | | DSA-3629-1 | |
| ntp | source | (unstable) | 1:4.2.8p7+dfsg-1 | | | |
Notes
http://www.talosintel.com/reports/TALOS-2016-0077/
https://github.com/ntp-project/ntp/commit/880191b72409a1965712999d248d70e6f7163af8
The upstream fix for this issue is reported to be incomplete:
http://bugs.ntp.org/show_bug.cgi?id=2945#c7
http://lists.ntp.org/pipermail/hackers/2016-January/007406.html
http://support.ntp.org/bin/view/Main/SecurityNotice#April_2016_NTP_4_2_8p7_Security