SB2021031114 - Denial of service in F5 BIG-IQ DCD
Published: March 11, 2021
Security Bulletin ID
SB2021031114
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) Input validation error (CVE-ID: CVE-2021-22996)
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. A remote attacker can send specially crafted message to the BIG-IQ Data Collection Device (DCD) cluster member that was set up for auto failover and cause the corosync process to abort, which leads to a denial of service.
Remediation
Install update from vendor's website.