Input validation error in BIG-IP - CVE-2019-6677
Published: December 24, 2019
Vulnerability identifier: #VU23803
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2019-6677
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: F5 Networks
Affected software:
BIG-IP
BIG-IP
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input within the Traffic Management Microkernel (TMM) process, when using custom TCP congestion control settings in a TCP profile. A remote attacker can send specially crafted traffic to the device and cause TMM to stop processing traffic when handled by an iRule.
How to mitigate CVE-2019-6677
Install updates from vendor's website.