Gentoo: GLSA-200904-05: ntp: Certificate validation error
Summary
Gentoo Linux Security Advisory GLSA 200904-05
https://security.gentoo.org/
Severity: Normal
Title: ntp: Certificate validation error
Date: April 05, 2009
Bugs: #254098
ID: 200904-05
Synopsis
=======
An error in the OpenSSL certificate chain validation in ntp might allow
for spoofing attacks.
Background
=========
ntp contains the client and daemon implementations for the Network Time
Protocol.
Affected packages
================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-misc/ntp < 4.2.4_p6 >= 4.2.4_p6
==========
It has been reported that ntp incorrectly checks the return value of
the EVP_VerifyFinal(), a vulnerability related to CVE-2008-5077 (GLSA
200902-02).
Impact
=====
A remote attacker could exploit this vulnerability to spoof arbitrary
names to conduct Man-In-The-Middle attacks and intercept sensitive
information.
Workaround
=========
There is no known workaround at this time.
Resolution
=========
All ntp users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/ntp-4.2.4_p6"
References
=========
[ 1 ] CVE-2008-5077
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-5077
[ 2 ] CVE-2009-0021
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0021
[ 3 ] GLSA 200902-02
https://security.gentoo.org/glsa/200902-02
Availability
===========
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/200904-05
Concerns?
========
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org/.
License
======
Copyright 2009 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).
The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.
https://creativecommons.org/licenses/by-sa/2.5/
Resolution
References
Availability
Concerns
![Dist Gentoo](/images/distros/dist-gentoo.png)