SB2023020633 - Denial of service in BIG-IP DNS with Rapid Response mode enabled
Published: February 6, 2023
Security Bulletin ID
SB2023020633
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) NULL pointer dereference (CVE-ID: CVE-2023-22839)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dreference error when a DNS profile with the Rapid Response Mode setting enabled is configured on a virtual server with hardware SYN cookies enabled. A remote attacker can send specially crafted traffic to the device and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.