| Name | CVE-2015-7851 |
| Description | Directory traversal vulnerability in the save_config function in ntpd in ntp_control.c in NTP before 4.2.8p4, when used on systems that do not use '\' or '/' characters for directory separation such as OpenVMS, allows remote authenticated users to overwrite arbitrary files. |
| 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-335-1, DSA-3388-1 |
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 | squeeze | 1:4.2.6.p2+dfsg-1+deb6u4 | | DLA-335-1 | |
| ntp | source | wheezy | 1:4.2.6.p5+dfsg-2+deb7u6 | | DSA-3388-1 | |
| ntp | source | jessie | 1:4.2.6.p5+dfsg-7+deb8u1 | | DSA-3388-1 | |
| ntp | source | (unstable) | 1:4.2.8p4+dfsg-1 | | | |
Notes
[jessie] - ntp <no-dsa> (Vulnerability only affects VMS)
[wheezy] - ntp <no-dsa> (Vulnerability only affects VMS)
[squeeze] - ntp <no-dsa> (Vulnerability only affects VMS)
http://support.ntp.org/bin/view/Main/SecurityNotice#October_2015_NTP_Security_Vulner
https://github.com/ntp-project/ntp/commit/184516e143ce4448ddb5b9876dd372008cc779f6