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The remote Oracle Linux host is missing a security update.
From Red Hat Security Advisory 2009:1040 :
An updated ntp package that fixes two security issues is now available
for Red Hat Enterprise Linux 4.
This update has been rated as having critical security impact by the
Red Hat Security Response Team.
The Network Time Protocol (NTP) is used to synchronize a computer's
time with a referenced time source.
A buffer overflow flaw was discovered in the ntpd daemon's NTPv4
authentication code. If ntpd was configured to use public key
cryptography for NTP packet authentication, a remote attacker could
use this flaw to send a specially crafted request packet that could
crash ntpd or, potentially, execute arbitrary code with the privileges
of the 'ntp' user. (CVE-2009-1252)
Note: NTP authentication is not enabled by default.
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.
All ntp users are advised to upgrade to this updated package, which
contains backported patches to resolve these issues. After installing
the update, the ntpd daemon will be restarted automatically.
See also :
Update the affected ntp package.
Risk factor :
Medium / CVSS Base Score : 6.8
CVSS Temporal Score : 5.9
Public Exploit Available : false
Family: Oracle Linux Local Security Checks
Nessus Plugin ID: 67861 ()
Bugtraq ID: 3448135017
CVE ID: CVE-2009-0159CVE-2009-1252
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