CVE-2018-19625 : What You Need to Know
Learn about CVE-2018-19625, a vulnerability in Wireshark versions 2.6.0 to 2.6.4 and 2.4.0 to 2.4.10 that could lead to a crash due to a heap-based buffer over-read issue. Find out the impact, affected systems, exploitation mechanism, and mitigation steps.
Wireshark versions 2.6.0 to 2.6.4 and 2.4.0 to 2.4.10 were found to have a vulnerability that could lead to a crash due to a heap-based buffer over-read issue.
Understanding CVE-2018-19625
This CVE entry pertains to a vulnerability in Wireshark versions 2.6.0 to 2.6.4 and 2.4.0 to 2.4.10 that could result in a crash.
What is CVE-2018-19625?
In Wireshark versions 2.6.0 to 2.6.4 and 2.4.0 to 2.4.10, a vulnerability in the dissection engine could lead to a crash. The issue was addressed by implementing measures in the epan/tvbuff_composite.c file to prevent a heap-based buffer over-read.
The Impact of CVE-2018-19625
This vulnerability could potentially lead to a crash of the Wireshark application, impacting its availability and potentially causing denial of service.
Technical Details of CVE-2018-19625
Wireshark versions 2.6.0 to 2.6.4 and 2.4.0 to 2.4.10 are affected by this vulnerability.
Vulnerability Description
The vulnerability in Wireshark versions 2.6.0 to 2.6.4 and 2.4.0 to 2.4.10 could result in a crash due to a heap-based buffer over-read issue.
Affected Systems and Versions
- Wireshark versions 2.6.0 to 2.6.4
- Wireshark versions 2.4.0 to 2.4.10
Exploitation Mechanism
The vulnerability could be exploited by a remote attacker sending a specially crafted packet to the target system, triggering the heap-based buffer over-read.
Mitigation and Prevention
It is crucial to take immediate steps to address and prevent the exploitation of this vulnerability.
Immediate Steps to Take
- Update Wireshark to the latest patched version to mitigate the vulnerability.
- Monitor official sources for security advisories and apply patches promptly.
Long-Term Security Practices
- Regularly update and patch all software to prevent known vulnerabilities.
- Employ network monitoring and intrusion detection systems to detect and respond to potential attacks.
- Conduct regular security audits and assessments to identify and address security gaps.
Patching and Updates
Ensure that Wireshark is regularly updated to the latest version to address security vulnerabilities and protect the system from potential exploits.