CVE-2018-7337 : Vulnerability Insights and Analysis
Learn about CVE-2018-7337 affecting Wireshark versions 2.4.0 to 2.4.4. Find out how a vulnerability in the DOCSIS protocol dissector could lead to crashes and the necessary mitigation steps.
Wireshark versions 2.4.0 to 2.4.4 were affected by a vulnerability in the DOCSIS protocol dissector, leading to potential crashes. The issue was resolved by removing a recursive algorithm in the packet-docsis.c plugin.
Understanding CVE-2018-7337
This CVE entry pertains to a vulnerability in Wireshark versions 2.4.0 to 2.4.4 related to the DOCSIS protocol dissector.
What is CVE-2018-7337?
Wireshark versions 2.4.0 to 2.4.4 were susceptible to a flaw in the DOCSIS protocol dissector, which could result in crashes. The vulnerability was addressed by eliminating a recursive algorithm in the packet-docsis.c plugin.
The Impact of CVE-2018-7337
The vulnerability could potentially lead to crashes in Wireshark versions 2.4.0 to 2.4.4 when processing DOCSIS protocol data.
Technical Details of CVE-2018-7337
This section provides technical details regarding the CVE-2018-7337 vulnerability.
Vulnerability Description
The issue in Wireshark versions 2.4.0 to 2.4.4 stemmed from a problem in the DOCSIS protocol dissector, which had the potential to cause the application to crash. The fix involved removing a recursive algorithm in the packet-docsis.c plugin.
Affected Systems and Versions
- Affected Versions: 2.4.0 to 2.4.4
- Systems: Wireshark installations running the specified versions
Exploitation Mechanism
The vulnerability could be exploited by sending specially crafted DOCSIS protocol data to a vulnerable Wireshark installation, triggering a crash.
Mitigation and Prevention
To address CVE-2018-7337 and enhance overall security, the following steps are recommended:
Immediate Steps to Take
- Update Wireshark to a non-vulnerable version
- Avoid processing untrusted DOCSIS protocol data
Long-Term Security Practices
- Regularly update Wireshark and other software to the latest versions
- Implement network segmentation to limit the impact of potential vulnerabilities
Patching and Updates
- Apply patches provided by Wireshark promptly to address known vulnerabilities and enhance security measures.