Scientific Linux Security Update : ntp on SL3.x, SL4.x, SL5.x i386/x86_64

Medium Nessus Plugin ID 60703


The remote Scientific Linux host is missing a security update.


CVE-2009-0159 ntp: buffer overflow in ntpq

CVE-2009-3563 ntpd: DoS with mode 7 packets (VU#568372)

Robin Park and Dmitri Vinokurov discovered a flaw in the way ntpd handled certain malformed NTP packets. ntpd logged information about all such packets and replied with an NTP packet that was treated as malformed when received by another ntpd. A remote attacker could use this flaw to create an NTP packet reply loop between two ntpd servers via a malformed packet with a spoofed source IP address and port, causing ntpd on those servers to use excessive amounts of CPU time and fill disk space with log messages. (CVE-2009-3563)

A buffer overflow flaw was found in the ntpq diagnostic command. A malicious, remote server could send a specially crafted reply to an ntpq request that could crash ntpq or, potentially, execute arbitrary code with the privileges of the user running the ntpq command.
(CVE-2009-0159) SL3 Only

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


Update the affected ntp package.

See Also

Plugin Details

Severity: Medium

ID: 60703

File Name: sl_20091208_ntp_on_SL3_x.nasl

Version: 1.7

Type: local

Agent: unix

Published: 2012/08/01

Updated: 2019/10/25

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 6.8

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

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: 2009/12/08

Reference Information

CVE: CVE-2009-0159, CVE-2009-3563

CWE: 119