SB2019122026 - Denial of service in F5 Networks BIG-IP LTM
Published: December 20, 2019 Updated: December 28, 2019
Security Bulletin ID
SB2019122026
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Resource management error (CVE-ID: CVE-2019-6686)
CWE-ID: CWE-399 - Resource Management Errors
CVSSv4: 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:Green
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to an error within the Message Routing Framework (MRF) in Traffic Management Microkernel (TMM). A remote attacker can force the TMM to stop responding after the total number of diameter connections and pending messages on a single virtual server has reached 32K.
Remediation
Install update from vendor's website.