CVE-2018-7326 Explained : Impact and Mitigation

Wireshark versions 2.4.0 to 2.4.4 and 2.2.0 to 2.2.12 encountered a problem in the packet-lltd.c file, resulting in an infinite loop. This issue was resolved by implementing the correct integer data type.

Understanding CVE-2018-7326

Wireshark versions 2.4.0 to 2.4.4 and 2.2.0 to 2.2.12 experienced an infinite loop issue in the packet-lltd.c file.

What is CVE-2018-7326?

CVE-2018-7326 is a vulnerability in Wireshark versions 2.4.0 to 2.4.4 and 2.2.0 to 2.2.12 that caused an infinite loop due to incorrect integer data type implementation.

The Impact of CVE-2018-7326

The vulnerability could lead to denial of service (DoS) by causing the affected application to crash or become unresponsive.

Technical Details of CVE-2018-7326

Wireshark versions 2.4.0 to 2.4.4 and 2.2.0 to 2.2.12 were affected by an infinite loop issue in the packet-lltd.c file.

Vulnerability Description

The problem stemmed from incorrect integer data type implementation in the epan/dissectors/packet-lltd.c file.

Affected Systems and Versions

Wireshark versions 2.4.0 to 2.4.4
Wireshark versions 2.2.0 to 2.2.12

Exploitation Mechanism

Exploitation of this vulnerability could lead to a continuous loop in the affected Wireshark versions, potentially causing a DoS condition.

Mitigation and Prevention

To address CVE-2018-7326, consider the following steps:

Immediate Steps to Take

Update Wireshark to the latest patched version.
Monitor vendor communications for any specific mitigation steps.

Long-Term Security Practices

Regularly update software and applications to prevent known vulnerabilities.
Implement network segmentation to limit the impact of potential attacks.

Patching and Updates

Apply patches provided by Wireshark to fix the vulnerability and prevent exploitation.