Double free error in F5 Networks products - CVE-2017-6166
Published: December 1, 2017 / Updated: December 4, 2017
Vulnerability identifier: #VU9522
CSH Severity: Low
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2017-6166
CWE-ID: CWE-415
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The vulnerability exists due to double free error when handling a user-supplied input. A remote attacker can send specially crafted fragmented data, trigger a double-free memory error in the Traffic Management Microkernel (TMM) and cause the TMM to crash, interrupting traffic processing while the TMM restarts.
Successful exploitation of the vulnerability results in denial of service.
Affected software
BIG-IP LTM
BIG-IP PEM
BIG-IP ASM
BIG-IP APM
BIG-IP Analytics
BIG-IP AFM
BIG-IP WebSafe
BIG-IP Link Controller
BIG-IP DNS
BIG-IP AAM
BIG-IP PEM
BIG-IP ASM
BIG-IP APM
BIG-IP Analytics
BIG-IP AFM
BIG-IP WebSafe
BIG-IP Link Controller
BIG-IP DNS
BIG-IP AAM
How to mitigate CVE-2017-6166
Install update from vendor's website.