GLSA 200904-05: ntp: Certificate validation error
| Severity: | normal |
| Title: | ntp: Certificate validation error |
| Date: | 04/05/2009 |
| Bugs: | |
| 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 | Architecture(s) |
|---|---|---|---|
| net-misc/ntp | < 4.2.4_p6 | >= 4.2.4_p6 | All supported architectures |
Description
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
Availability
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
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 2010 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.