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Test ID:1.3.6.1.4.1.25623.1.0.55602
Category:Debian Local Security Checks
Title:Debian: Security Advisory (DSA-851-1)
Summary:The remote host is missing an update for the Debian 'openvpn' package(s) announced via the DSA-851-1 advisory.
Description:Summary:
The remote host is missing an update for the Debian 'openvpn' package(s) announced via the DSA-851-1 advisory.

Vulnerability Insight:
Several security related problems have been discovered in openvpn, a Virtual Private Network daemon. The Common Vulnerabilities and Exposures project identifies the following problems:

CAN-2005-2531

Wrong processing of failed certificate authentication when running with 'verb 0' and without TLS authentication can lead to a denial of service by disconnecting the wrong client.

CAN-2005-2532

Wrong handling of packets that can't be decrypted on the server can lead to the disconnection of unrelated clients.

CAN-2005-2533

When running in 'dev tap' Ethernet bridging mode, openvpn can exhaust its memory by receiving a large number of spoofed MAC addresses and hence denying service.

CAN-2005-2534

Simultaneous TCP connections from multiple clients with the same client certificate can cause a denial of service when --duplicate-cn is not enabled.

The old stable distribution (woody) does not contain openvpn packages.

For the stable distribution (sarge) these problems have been fixed in version 2.0-1sarge1.

For the unstable distribution (sid) these problems have been fixed in version 2.0.2-1.

We recommend that you upgrade your openvpn package.

Affected Software/OS:
'openvpn' package(s) on Debian 3.1.

Solution:
Please install the updated package(s).

CVSS Score:
5.0

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

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2005-2531
BugTraq ID: 14605
http://www.securityfocus.com/bid/14605
Debian Security Information: DSA-851 (Google Search)
http://www.debian.org/security/2005/dsa-851
http://www.mandriva.com/security/advisories?name=MDKSA-2005:145
http://secunia.com/advisories/16463
http://secunia.com/advisories/17103
SuSE Security Announcement: SUSE-SR:2005:020 (Google Search)
http://www.novell.com/linux/security/advisories/2005_20_sr.html
Common Vulnerability Exposure (CVE) ID: CVE-2005-2532
BugTraq ID: 14607
http://www.securityfocus.com/bid/14607
Common Vulnerability Exposure (CVE) ID: CVE-2005-2533
Common Vulnerability Exposure (CVE) ID: CVE-2005-2534
BugTraq ID: 14610
http://www.securityfocus.com/bid/14610
CopyrightCopyright (C) 2008 Greenbone AG

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