CVE-2019-6606 Explained : Impact and Mitigation
Learn about CVE-2019-6606, a memory leakage vulnerability in the snmpd process on BIG-IP versions 11.5.1-11.6.3.4, 12.1.0-12.1.3.7, 13.0.0-13.1.1.3, and 14.0.0-14.0.0.2, potentially leading to a DoS risk. Find mitigation steps and patching details here.
This CVE involves a memory leakage vulnerability in the snmpd process on BIG-IP versions 11.5.1-11.6.3.4, 12.1.0-12.1.3.7, 13.0.0-13.1.1.3, and 14.0.0-14.0.0.2 when processing specific SNMP requests.
Understanding CVE-2019-6606
This CVE identifies a potential memory leakage issue in the snmpd process on certain BIG-IP versions, leading to a Denial of Service (DoS) risk.
What is CVE-2019-6606?
The vulnerability in the snmpd process on affected BIG-IP versions can result in memory leakage when processing SNMP requests with a request-id of 0.
The Impact of CVE-2019-6606
The vulnerability could be exploited by an attacker to cause a DoS condition by consuming excessive memory resources on the affected system.
Technical Details of CVE-2019-6606
This section provides more in-depth technical insights into the CVE.
Vulnerability Description
The snmpd process on BIG-IP versions 11.5.1-11.6.3.4, 12.1.0-12.1.3.7, 13.0.0-13.1.1.3, and 14.0.0-14.0.0.2 may leak memory when handling SNMP requests with a request-id of 0.
Affected Systems and Versions
- BIG-IP versions 11.5.1-11.6.3.4
- BIG-IP versions 12.1.0-12.1.3.7
- BIG-IP versions 13.0.0-13.1.1.3
- BIG-IP versions 14.0.0-14.0.0.2
Exploitation Mechanism
Attackers can exploit this vulnerability by sending specific SNMP requests with a request-id of 0 to trigger memory leakage in the snmpd process.
Mitigation and Prevention
Protecting systems from this vulnerability requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply the vendor-provided patches for the affected BIG-IP versions.
- Monitor system resources for any unusual memory consumption.
- Restrict SNMP access to trusted sources only.
Long-Term Security Practices
- Regularly update and patch systems to prevent known vulnerabilities.
- Implement network segmentation to limit the impact of potential attacks.
- Conduct regular security audits and assessments to identify and address security gaps.
Patching and Updates
Ensure timely installation of patches and updates provided by BIG-IP to address the memory leakage vulnerability in the snmpd process.