What is the severity of RHSA-2009:1039?

The severity of RHSA-2009:1039 is classified as important.

How do I fix RHSA-2009:1039?

To fix RHSA-2009:1039, you should upgrade to the ntp package version 4.2.2p1-9.el5_3.2 or later.

What causes the vulnerability in RHSA-2009:1039?

The vulnerability in RHSA-2009:1039 is caused by a buffer overflow flaw in the ntpd daemon's NTPv4 authentication code.

Which systems are affected by RHSA-2009:1039?

RHSA-2009:1039 affects systems running the ntp package version 4.2.2p1-9.el5_3.2 or earlier.

Is public key cryptography affected in RHSA-2009:1039?

Yes, public key cryptography for NTP packet authentication is affected by the vulnerability outlined in RHSA-2009:1039.

Vulnerability/
RHSA-2009:1039

CWE

119

18/5/2009

RHSA-2009:1039: Important: ntp security update

First published: Mon May 18 2009(Updated: )

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. (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. (CVE-2009-0159) 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.

Affected Software	Affected Version	How to fix
redhat/ntp	<4.2.2p1-9.el5_3.2	4.2.2p1-9.el5_3.2
redhat/ntp	<4.2.2p1-9.el5_3.2	4.2.2p1-9.el5_3.2

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Frequently Asked Questions

What is the severity of RHSA-2009:1039?
The severity of RHSA-2009:1039 is classified as important.
How do I fix RHSA-2009:1039?
To fix RHSA-2009:1039, you should upgrade to the ntp package version 4.2.2p1-9.el5_3.2 or later.
What causes the vulnerability in RHSA-2009:1039?
The vulnerability in RHSA-2009:1039 is caused by a buffer overflow flaw in the ntpd daemon's NTPv4 authentication code.
Which systems are affected by RHSA-2009:1039?
RHSA-2009:1039 affects systems running the ntp package version 4.2.2p1-9.el5_3.2 or earlier.
Is public key cryptography affected in RHSA-2009:1039?
Yes, public key cryptography for NTP packet authentication is affected by the vulnerability outlined in RHSA-2009:1039.

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