Vulnerability identifier: #VU23787

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-6681

CWE-ID: CWE-401

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
BIG-IP LTM
Hardware solutions / Security hardware applicances

Vendor: F5 Networks

Description
The vulnerability allows a remote attacker to perform DoS attack on the target system.

The vulnerability exists due memory leak in the tmrouted process on a BIG-IP system licensed with the Routing bundle and configured for Multicast Forwarding Cache (MFC). A remote attacker can trigger memory leak and perform a denial of service attack by exhausting system resources.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

BIG-IP LTM: 13.0.0 - 15.0.1.1

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External links
http://api-u.f5.com/support/kb-articles/K93417064?cacheFlag=false
http://support.f5.com/csp/article/K93417064

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.