A vulnerability classified as critical has been found in Nortel UNIStim IP Phone 0604das (IP Phone Software). This affects an unknown code. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on availability. The summary by CVE is:

Nortel Networks UNIStim IP Phone 0604DAS allows remote attackers to cause a denial of service (crash) via a long ping packet ("ping of death"). NOTE: this issue could not be reproduced by a third party, who tested it on 0604DAD. In addition, the original researcher was not able to reliably reproduce the issue.

The weakness was disclosed 11/07/2008 (Website). The advisory is shared at securityfocus.com. This vulnerability is uniquely identified as CVE-2008-4999 since 11/07/2008. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are unknown but a public exploit is available.

The exploit is shared for download at exploit-db.com. 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 databases at X-Force (40993), Exploit-DB (31306) and SecurityFocus (BID 28004†). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• IP Phone Software

Vendor

• Nortel

Name

• UNIStim IP Phone

Version

• 0604das

License

• commercial

CPE 2.3info

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CPE 2.2info

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