| Name | CVE-2015-7978 |
| Description | NTP before 4.2.8p6 and 4.3.0 before 4.3.90 allows a remote attackers to cause a denial of service (stack exhaustion) via an ntpdc relist command, which triggers recursive traversal of the restriction list. |
| 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://support.ntp.org/bin/view/Main/SecurityNotice#January_2016_NTP_4_2_8p6_Securit
http://support.ntp.org/bin/view/Main/NtpBug2940
https://github.com/ntp-project/ntp/commit/8a0c765f3c47633fa262356b0818788d1cf249b1