F5 BIG-IP - BIG-IP last hop kernel module vulnerability CVE-2015-5516

Published: 2016-01-19 10:57:11
CVE Author: NIST National Vulnerability Database

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

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.

Detection Method:
Checks if a vulnerable version is present on the target host.

Technical Details:
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.

Recommendations:
See the referenced vendor advisory for a solution.

Summary:
The remote host is missing a security patch.

Detection Type:
Linux Distribution Package

Solution Type:
Vendor Patch

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2015-5516

References:

https://support.f5.com/csp/article/K00032124

Severity
High
CVSS Score
7.8
Published
2016-01-19
Modified
2021-05-04
Category
F5 Local Security Checks

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