CVE-2018-16300 : What You Need to Know
Learn about CVE-2018-16300, a vulnerability in tcpdump before version 4.9.3 allowing stack consumption due to unlimited recursion. Find out the impact, affected systems, exploitation mechanism, and mitigation steps.
Unlimited recursion in the print-bgp.c:bgp_attr_print() function of the BGP parser in tcpdump prior to version 4.9.3 leads to stack consumption.
Understanding CVE-2018-16300
The vulnerability in tcpdump before version 4.9.3 allows for stack consumption due to unlimited recursion in the print-bgp.c:bgp_attr_print() function.
What is CVE-2018-16300?
The BGP parser in tcpdump allows for stack consumption because of unlimited recursion in the print-bgp.c:bgp_attr_print() function.
The Impact of CVE-2018-16300
The vulnerability can lead to stack consumption, potentially resulting in denial of service or other security issues.
Technical Details of CVE-2018-16300
The technical aspects of the CVE-2018-16300 vulnerability.
Vulnerability Description
The BGP parser in tcpdump before version 4.9.3 allows stack consumption in print-bgp.c:bgp_attr_print() due to unlimited recursion.
Affected Systems and Versions
- Product: N/A
- Vendor: N/A
- Versions affected: N/A
Exploitation Mechanism
The vulnerability can be exploited by causing the BGP parser to enter an infinite recursion loop, leading to stack consumption.
Mitigation and Prevention
Steps to mitigate and prevent exploitation of CVE-2018-16300.
Immediate Steps to Take
- Update tcpdump to version 4.9.3 or later to mitigate the vulnerability.
- Monitor network traffic for any signs of exploitation.
Long-Term Security Practices
- Regularly update software and firmware to patch known vulnerabilities.
- Implement network segmentation to limit the impact of potential attacks.
- Conduct regular security audits and penetration testing to identify and address vulnerabilities.
Patching and Updates
- Apply patches and updates provided by tcpdump to address the vulnerability and enhance overall system security.