A vulnerability was found in Aventail Aventail Connect 4.1.2.13. It has been declared as very critical. Affected by this vulnerability is an unknown function in the library asnsp.dll. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Buffer overflow in asnsp.dll in Aventail Connect 4.1.2.13 allows remote attackers to cause a denial of service (application crash) or execute arbitrary code via a malformed DNS query.

The weakness was disclosed 05/02/2007 by Thomas Pollet (Website). It is possible to read the advisory at marc.info. This vulnerability is known as CVE-2007-2434 since 05/01/2007. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 03/26/2019).

It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at X-Force (33972).

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Vendor

• Aventail

Name

• Aventail Connect

Version

• 4.1.2.13

CPE 2.3info

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CPE 2.2info

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