A vulnerability has been found in Huawei NGFW Module (unknown version) and classified as critical. This vulnerability affects an unknown code block of the component Smart DNS. 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. CVE summarizes:

Buffer overflow in the Smart DNS functionity in the Huawei NGFW Module and Secospace USG6300, USG6500, USG6600, and USG9500 firewalls with software before V500R001C20SPC100 allows remote attackers to cause a denial of service or execute arbitrary code via a crafted packet, related to "illegitimate parameters."

The weakness was published 05/23/2016 (Website). The advisory is available at huawei.com. This vulnerability was named CVE-2016-4577 since 05/11/2016. The exploitation appears to be difficult. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 90532†). Similar entry is available at VDB-87609.

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• Huawei

Name

• NGFW Module

License

• commercial

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