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Test ID:1.3.6.1.4.1.25623.1.0.105515
Category:F5 Local Security Checks
Title:F5 BIG-IP - BIG-IP last hop kernel module vulnerability CVE-2015-5516
Summary:The remote host is missing a security patch.
Description:Summary:
The remote host is missing a security patch.

Vulnerability Insight:
The BIG-IP last hop kernel module may leak memory when processing User Datagram Protocol (UDP) traffic. The memory leak may cause denial-of-service (DoS) conditions for the BIG-IP system.

Vulnerability Impact:
The following configurations may allow a remote attacker to cause a memory leak and potential DoS conditions on BIG-IP systems:

- You use the management interface to provide remote access to UDP based services.

- You use self IP addresses to provide remote access to UDP based services.

- Virtual servers that reference a DNS profile with the Use BIND Server on BIG-IP option enabled (the option is enabled by default in BIG-IP 11.2.x through 12.0.0).

- Wide IPs reference either of the following pool configurations:

- A pool using the Return to DNS load balancing method.

- A pool in which the Alternate and Fallback load balancing methods are set to None and all pools associated with the wide IP are unavailable.

Solution:
See the referenced vendor advisory for a solution.

CVSS Score:
7.8

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

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2015-5516
http://www.securitytracker.com/id/1034686
http://www.securitytracker.com/id/1034687
CopyrightCopyright (C) 2016 Greenbone Networks GmbH

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