#VU9708 Denial of service in F5 Networks products - CVE-2017-6140

Vulnerability identifier: #VU9708

Vulnerability risk: Low

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-6140

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
BIG-IP LTM
Hardware solutions / Security hardware applicances
BIG-IP AFM
Hardware solutions / Security hardware applicances
BIG-IP Analytics
Hardware solutions / Security hardware applicances
BIG-IP APM
Hardware solutions / Security hardware applicances
BIG-IP ASM
Hardware solutions / Security hardware applicances
BIG-IP GTM
Hardware solutions / Security hardware applicances
BIG-IP PEM
Hardware solutions / Security hardware applicances
BIG-IP AAM
Hardware solutions / Routers & switches, VoIP, GSM, etc
BIG-IP DNS
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: F5 Networks

Description
The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists in multiple F5 Networks products using virtual servers with client or server SSL profiles that use AES-GCM cipher suite due to improper processing of packets. A remote attacker can send a series of packets and cause a disruption of the data plane services on the system.

Successful exploitation of the vulnerability results in denial of service.

Mitigation
The vulnerability is addressed in the following versions: 11.5.5, 11.6.2, 11.5.5, 13.0.0.

Vulnerable software versions

BIG-IP LTM: 11.5.0 - 12.1.2

BIG-IP AAM: 11.5.0 - 12.1.2

BIG-IP AFM: 11.5.0 - 12.1.2

BIG-IP Analytics: 11.5.0 - 12.1.2

BIG-IP APM: 11.5.0 - 12.1.2

BIG-IP ASM: 11.5.0 - 12.1.2

BIG-IP DNS: 11.5.0 - 12.1.2

BIG-IP GTM: 11.5.0 - 12.1.1

BIG-IP PEM: 11.5.0 - 12.1.2

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External links
https://support.f5.com/csp/article/K55102452

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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.