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Test ID:1.3.6.1.4.1.25623.1.0.63281
Category:Red Hat Local Security Checks
Title:RedHat Security Advisory RHSA-2009:0046
Summary:The remote host is missing updates announced in;advisory RHSA-2009:0046.;;The Network Time Protocol (NTP) is used to synchronize a computer's time;with a referenced time source.;;A flaw was discovered in the way the ntpd daemon checked the return value;of the OpenSSL EVP_VerifyFinal function. On systems using NTPv4;authentication, this could lead to an incorrect verification of;cryptographic signatures, allowing time-spoofing attacks. (CVE-2009-0021);;Note: This issue only affects systems that have enabled NTP authentication.;By default, NTP authentication is not enabled.;;All ntp users are advised to upgrade to the updated packages, which contain;a backported patch to resolve this issue. After installing the update, the;ntpd daemon will restart automatically.
Description:Summary:
The remote host is missing updates announced in
advisory RHSA-2009:0046.

The Network Time Protocol (NTP) is used to synchronize a computer's time
with a referenced time source.

A flaw was discovered in the way the ntpd daemon checked the return value
of the OpenSSL EVP_VerifyFinal function. On systems using NTPv4
authentication, this could lead to an incorrect verification of
cryptographic signatures, allowing time-spoofing attacks. (CVE-2009-0021)

Note: This issue only affects systems that have enabled NTP authentication.
By default, NTP authentication is not enabled.

All ntp users are advised to upgrade to the updated packages, which contain
a backported patch to resolve this issue. After installing the update, the
ntpd daemon will restart automatically.

Solution:
Please note that this update is available via
Red Hat Network. To use Red Hat Network, launch the Red
Hat Update Agent with the following command: up2date

CVSS Score:
5.0

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

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2009-0021
1021533
http://www.securitytracker.com/id?1021533
20090107 [oCERT-2008-016] Multiple OpenSSL signature verification API misuses
http://www.securityfocus.com/archive/1/499827/100/0/threaded
33406
http://secunia.com/advisories/33406
33558
http://secunia.com/advisories/33558
33648
http://secunia.com/advisories/33648
34642
http://secunia.com/advisories/34642
35074
http://secunia.com/advisories/35074
ADV-2009-0042
http://www.vupen.com/english/advisories/2009/0042
ADV-2009-1297
http://www.vupen.com/english/advisories/2009/1297
APPLE-SA-2009-05-12
http://lists.apple.com/archives/security-announce/2009/May/msg00002.html
RHSA-2009:0046
http://www.redhat.com/support/errata/RHSA-2009-0046.html
SSA:2009-014-03
http://slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.531177
SUSE-SR:2009:005
http://lists.opensuse.org/opensuse-security-announce/2009-03/msg00000.html
SUSE-SR:2009:008
http://lists.opensuse.org/opensuse-security-announce/2009-04/msg00003.html
TA09-133A
http://www.us-cert.gov/cas/techalerts/TA09-133A.html
[announce] 20090108 NTP 4.2.4p6 Released
https://lists.ntp.org/pipermail/announce/2009-January/000055.html
http://support.apple.com/kb/HT3549
http://www.ocert.org/advisories/ocert-2008-016.html
oval:org.mitre.oval:def:10035
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10035
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