SB2020121718 - Denial of service in TMM module in F5 BIG-IP
Published: December 17, 2020
Security Bulletin ID
SB2020121718
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Memory leak (CVE-ID: CVE-2020-27713)
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.
Remediation
Install update from vendor's website.