SB2021042917 - Denial of service in BIG-IP TMM
Published: April 29, 2021
Security Bulletin ID
SB2021042917
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) Infinite loop (CVE-ID: CVE-2021-23009)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to infinite loop when processing HTTP/2 requests in TMM module. A remote attacker can send specially crafted HTTP/2 packets to the system and cause a denial of service condition.
Remediation
Install update from vendor's website.