Debian Security Advisory DSA 3108-1 (ntp - security update)

Published: 2014-12-19 23:00:00
CVE Author: NIST National Vulnerability Database

CVSS Base Vector:
AV:N/AC:L/Au:N/C:P/I:P/A:P

Solution Type:
Vendor Patch

Affected Versions:
ntp on Debian Linux

Recommendations:
For the stable distribution (wheezy), these problems have been fixed in version 1:4.2.6.p5+dfsg-2+deb7u1. We recommend that you upgrade your ntp Linux Distribution Packages.

Summary:
Several vulnerabilities were discovered in the ntp Linux Distribution 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.

Detection Method:
This check tests the installed software version using the apt Linux Distribution Package manager.

Detection Type:
Linux Distribution Package

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2014-9293
https://nvd.nist.gov/vuln/detail/CVE-2014-9294
https://nvd.nist.gov/vuln/detail/CVE-2014-9295
https://nvd.nist.gov/vuln/detail/CVE-2014-9296

References:

http://www.debian.org/security/2014/dsa-3108.html

Severity
High
CVSS Score
7.5
Published
2014-12-19
Modified
2021-11-24
Category
Debian Local Security Checks

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