Fedora 9 : ntp-4.2.4p6-1.fc9 (2009-0547)

Medium Nessus Plugin ID 35455


The remote Fedora host is missing a security update.


This update fixes CVE-2009-0021: NTP 4.2.4 before 4.2.4p5 and 4.2.5 before 4.2.5p150 does not properly check the return value from the OpenSSL EVP_VerifyFinal function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature for DSA and ECDSA keys, a similar vulnerability to CVE-2008-5077.

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.


Update the affected ntp package.

See Also



Plugin Details

Severity: Medium

ID: 35455

File Name: fedora_2009-0547.nasl

Version: $Revision: 1.17 $

Type: local

Agent: unix

Published: 2009/01/26

Modified: 2016/05/05

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 5

Temporal Score: 4.3

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

Temporal Vector: CVSS2#E:ND/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:fedoraproject:fedora:ntp, cpe:/o:fedoraproject:fedora:9

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2009/01/14

Reference Information

CVE: CVE-2009-0021

BID: 33150

FEDORA: 2009-0547

CWE: 287