CVE-2018-7334 : Exploit Details and Defense Strategies

Wireshark versions 2.4.0 to 2.4.4 and 2.2.0 to 2.2.12 encountered a potential crash issue with the UMTS MAC dissector due to a specific reserved value. Learn about the impact, technical details, and mitigation steps.

Understanding CVE-2018-7334

Wireshark versions 2.4.0 to 2.4.4 and 2.2.0 to 2.2.12 experienced a potential crash issue with the UMTS MAC dissector due to a specific reserved value being rejected in epan/dissectors/packet-umts_mac.c.

What is CVE-2018-7334?

In Wireshark versions 2.4.0 to 2.4.4 and 2.2.0 to 2.2.12, a vulnerability in the UMTS MAC dissector could lead to a crash. This vulnerability was addressed by rejecting a certain reserved value in the packet-umts_mac.c file.

The Impact of CVE-2018-7334

Wireshark versions 2.4.0 to 2.4.4 and 2.2.0 to 2.2.12 were affected
The vulnerability could potentially lead to a crash in the UMTS MAC dissector

Technical Details of CVE-2018-7334

Vulnerability Description

The vulnerability in Wireshark versions 2.4.0 to 2.4.4 and 2.2.0 to 2.2.12 allowed for a potential crash issue in the UMTS MAC dissector.

Affected Systems and Versions

Wireshark versions 2.4.0 to 2.4.4
Wireshark versions 2.2.0 to 2.2.12

Exploitation Mechanism

The vulnerability could be exploited by sending specially crafted network packets to the affected Wireshark versions, triggering a crash in the UMTS MAC dissector.

Mitigation and Prevention

Immediate Steps to Take

Update Wireshark to the latest version available
Apply patches provided by the vendor

Long-Term Security Practices

Regularly update software and security patches
Monitor vendor security advisories

Patching and Updates

Ensure Wireshark is kept up to date with the latest security patches and fixes