Debian DSA-3154-1 : ntp - security update

Medium Nessus Plugin ID 81189

Synopsis

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

Description

Several vulnerabilities were discovered in the ntp package, an implementation of the Network Time Protocol. The Common Vulnerabilities and Exposures project identifies the following problems :

- CVE-2014-9750 Stephen Roettger of the Google Security Team, Sebastian Krahmer of the SUSE Security Team and Harlan Stenn of Network Time Foundation discovered that the length value in extension fields is not properly validated in several code paths in ntp_crypto.c, which could lead to information leakage or denial of service (ntpd crash).

- CVE-2014-9751 Stephen Roettger of the Google Security Team reported that ACLs based on IPv6 ::1 addresses can be bypassed.

Solution

Upgrade the ntp packages.

For the stable distribution (wheezy), these problems have been fixed in version 1:4.2.6.p5+dfsg-2+deb7u2.

See Also

https://security-tracker.debian.org/tracker/CVE-2014-9750

https://security-tracker.debian.org/tracker/CVE-2014-9751

https://packages.debian.org/source/wheezy/ntp

https://www.debian.org/security/2015/dsa-3154

https://www.tenable.com/security/research/tra-2015-04

Plugin Details

Severity: Medium

ID: 81189

File Name: debian_DSA-3154.nasl

Version: 1.11

Type: local

Agent: unix

Published: 2015/02/06

Updated: 2018/11/10

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 6.8

Temporal Score: 5

Vector: CVSS2#AV:N/AC:M/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: 2015/02/05

Reference Information

CVE: CVE-2014-9750, CVE-2014-9751

DSA: 3154

TRA: TRA-2015-04