20415 : OpenVPN Client foreign_option() Function Format String
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Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
4	298	over 6 years ago	over 3 years ago	0 times	90%

Timeline

Disclosure Date
2005-10-31

Description

OpenVPN Client contains a flaw that may allow a malicious server to perform a format string attack. The issue is triggered when using a specific value in the 'dhcp-option' parameter on a server. It is possible that the flaw may allow arbitrary code execution resulting in a loss of integrity.

Classification

Location: Remote / Network Access, Local / Remote, Context Dependent
Attack Type: Input Manipulation
Impact: Loss of Integrity
Exploit: Exploit Unknown
Disclosure: OSVDB Verified, Vendor Verified

Technical

This issue can only be exploited on non Windows operating systems.

Solution

Upgrade to version 2.0.4 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

Products

OpenVPN Solutions LLC	OpenVPN	2.0beta11
		2.0.1
		2.0.2
		2.0.3

References

Bugtraq ID: 15239
Secunia Advisory ID: 17376 17447 17452 17480
CVE ID: 2005-3393 (see also: NVD)
Related OSVDB ID: 20416
ISS X-Force ID: 22934
Mail List Post: http://archives.neohapsis.com/archives/bugtraq/2005-10/0378.html
Other Advisory URL: http://lists.suse.com/archive/suse-security-announce/2005-Nov/0001.html
http://www.debian.org/security/2005/dsa-885
http://www.gentoo.org/security/en/glsa/glsa-200511-07.xml
Vendor URL: http://openvpn.net/
Vendor Specific News/Changelog Entry: http://openvpn.net/changelog.html

Tools & Filters

	20157 20440 21438 22751

Manual Testing Notes

Credit

vade79 - v9fakehalo.org -

CVSSv2 Score

CVSSv2 Base Score = 7.5
Source: nvd.nist.gov | Generated: 2005-11-08 | Disagree?

Blogs

This product uses the Daylife API but is not endorsed or certified by Daylife.

This section lists the latest news and blogs found via the daylife API (and for older items, the technorati API), which mention or otherwise discuss this vulnerability.

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