Scientific Linux Security Update : ntp on SL6.x, SL7.x i386/x86_64

Medium Nessus Plugin ID 88175


The remote Scientific Linux host is missing one or more security updates.


It was discovered that ntpd as a client did not correctly check the originate timestamp in received packets. A remote attacker could use this flaw to send a crafted packet to an ntpd client that would effectively disable synchronization with the server, or push arbitrary offset/delay measurements to modify the time on the client.

After installing the update, the ntpd daemon will restart automatically.


Update the affected packages.

See Also

Plugin Details

Severity: Medium

ID: 88175

File Name: sl_20160125_ntp_on_SL6_x.nasl

Version: $Revision: 2.7 $

Type: local

Agent: unix

Published: 2016/01/26

Modified: 2017/02/13

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 5

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


Base Score: 5.3

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Vulnerability Information

CPE: x-cpe:/o:fermilab:scientific_linux

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/RedHat/release, Host/RedHat/rpm-list

Patch Publication Date: 2016/01/25

Reference Information

CVE: CVE-2015-8138