SB2021031117 - SYN flood denial of service in BIG-IP SNAT implementation
Published: March 11, 2021
Security Bulletin ID
SB2021031117
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) Resource exhaustion (CVE-ID: CVE-2021-22998)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to SYN flood protection thresholds are not enforced in secure network address translation (SNAT) listeners. A remote attacker can perform SYN flood class attacks.
Remediation
Install update from vendor's website.