Debian DSA-3108-1 : ntp - security update

High Nessus Plugin ID 80208

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VPR Score: 6.7


The remote Debian host is missing a security-related update.


Several vulnerabilities were discovered in the ntp package, an implementation of the Network Time Protocol.

- CVE-2014-9293 ntpd generated a weak key for its internal use, with full administrative privileges. Attackers could use this key to reconfigure ntpd (or to exploit other vulnerabilities).

- CVE-2014-9294 The ntp-keygen utility generated weak MD5 keys with insufficient entropy.

- CVE-2014-9295 ntpd had several buffer overflows (both on the stack and in the data section), allowing remote authenticated attackers to crash ntpd or potentially execute arbitrary code.

- CVE-2014-9296 The general packet processing function in ntpd did not handle an error case correctly.

The default ntpd configuration in Debian restricts access to localhost (and possible the adjacent network in case of IPv6).

Keys explicitly generated by 'ntp-keygen -M' should be regenerated.


Upgrade the ntp packages.

For the stable distribution (wheezy), these problems have been fixed in version 1:4.2.6.p5+dfsg-2+deb7u1.

See Also

Plugin Details

Severity: High

ID: 80208

File Name: debian_DSA-3108.nasl

Version: 1.18

Type: local

Agent: unix

Published: 2014/12/23

Updated: 2021/01/11

Dependencies: 12634

Risk Information

Risk Factor: High

VPR Score: 6.7

CVSS v2.0

Base Score: 7.5

Temporal Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:ntp, cpe:/o:debian:debian_linux:7.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2014/12/20

Reference Information

CVE: CVE-2014-9293, CVE-2014-9294, CVE-2014-9295, CVE-2014-9296

BID: 71757, 71761, 71762

DSA: 3108