CVE-2017-12992 : Vulnerability Insights and Analysis
Discover the buffer over-read vulnerability in the RIPng parser of tcpdump versions before 4.9.2. Learn about the impact, affected systems, exploitation, and mitigation steps.
In tcpdump version prior to 4.9.2, a buffer over-read issue exists in the RIPng parser, specifically in the print-ripng.c:ripng_print() function.
Understanding CVE-2017-12992
What is CVE-2017-12992?
The vulnerability in CVE-2017-12992 is a buffer over-read in the RIPng parser of tcpdump versions before 4.9.2.
The Impact of CVE-2017-12992
This vulnerability could potentially be exploited by an attacker to execute arbitrary code or cause a denial of service (DoS) on the affected system.
Technical Details of CVE-2017-12992
Vulnerability Description
The RIPng parser in tcpdump before version 4.9.2 suffers from a buffer over-read in the print-ripng.c:ripng_print() function.
Affected Systems and Versions
- Product: N/A
- Vendor: N/A
- Versions: All versions prior to 4.9.2
Exploitation Mechanism
The vulnerability can be exploited by crafting a malicious RIPng packet to trigger the buffer over-read in the affected function.
Mitigation and Prevention
Immediate Steps to Take
- Update tcpdump to version 4.9.2 or later to mitigate the vulnerability.
- Monitor vendor advisories and apply patches promptly.
Long-Term Security Practices
- Regularly update software and firmware to the latest versions.
- Implement network segmentation to minimize the impact of potential attacks.
- Conduct regular security assessments and penetration testing.
Patching and Updates
Ensure that all systems running tcpdump are updated to version 4.9.2 or above to address the buffer over-read vulnerability.