CVE-2018-14467 : Vulnerability Insights and Analysis
Learn about CVE-2018-14467, a buffer over-read vulnerability in tcpdump before version 4.9.3. Find out the impact, affected systems, exploitation mechanism, and mitigation steps.
A buffer over-read vulnerability exists in the BGP parser of tcpdump prior to version 4.9.3, specifically in the print-bgp.c file within the bgp_capabilities_print() function when processing BGP_CAPCODE_MP.
Understanding CVE-2018-14467
What is CVE-2018-14467?
The BGP parser in tcpdump before version 4.9.3 has a buffer over-read vulnerability in the print-bgp.c:bgp_capabilities_print() function (BGP_CAPCODE_MP).
The Impact of CVE-2018-14467
This vulnerability could allow an attacker to exploit the BGP parser, potentially leading to information disclosure or denial of service.
Technical Details of CVE-2018-14467
Vulnerability Description
The vulnerability is a buffer over-read in the BGP parser of tcpdump before version 4.9.3, specifically in the bgp_capabilities_print() function.
Affected Systems and Versions
- Product: N/A
- Vendor: N/A
- Versions affected: N/A
Exploitation Mechanism
The vulnerability can be exploited by processing BGP_CAPCODE_MP, potentially leading to a buffer over-read.
Mitigation and Prevention
Immediate Steps to Take
- Update tcpdump to version 4.9.3 or later to mitigate the vulnerability.
- Monitor vendor security advisories for patches and updates.
Long-Term Security Practices
- Regularly update software and systems to the latest versions.
- Implement network segmentation and access controls to limit exposure to potential attacks.
- Conduct regular security assessments and penetration testing.
Patching and Updates
Ensure timely application of security patches and updates to address known vulnerabilities.