Memory leak in F5 Networks products - CVE-2020-27713

Vulnerability identifier: #VU49057

CSH Severity: Medium

CVSS v4.0: 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/E:U/U:Green

CVE-ID: CVE-2020-27713

CWE-ID: CWE-401

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vendor: F5 Networks

Affected software:
BIG-IP
BIG-IP DDHD
BIG-IP SSLO
BIG-IP LTM
BIG-IP AFM
BIG-IP Analytics
BIG-IP APM
BIG-IP ASM
BIG-IP FPS
BIG-IP GTM
BIG-IP PEM
BIG-IP AAM
BIG-IP DNS
BIG-IP Link Controller
BIG-IP Advanced WAF

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

The vulnerability exists due memory leak when a BIG-IP AFM HTTP security profile is applied to a virtual server and the BIG-IP system receives a request with specific characteristics. A remote attacker can send specially crafted traffic to the server, force TMM module to leak memory and perform a denial of service (DoS) attack.

Install updates from vendor's website.

• https://support.f5.com/csp/article/K37960100