CVE-2023-0413 : Security Advisory and Response

This CVE-2023-0413 was published on January 24, 2023, by GitLab. It involves a dissection engine bug in Wireshark versions 4.0.0 to 4.0.2 and 3.6.0 to 3.6.10, which allows for denial of service through packet injection or crafted capture files.

Understanding CVE-2023-0413

This section will delve into what CVE-2023-0413 entails, its impact, technical details, and mitigation steps.

What is CVE-2023-0413?

CVE-2023-0413 is a vulnerability in Wireshark that results in a null pointer dereference. Attackers can exploit this flaw to trigger denial of service through packet injection or specially crafted capture files.

The Impact of CVE-2023-0413

The impact of this vulnerability is significant, as it allows malicious actors to disrupt network traffic and potentially crash affected systems running vulnerable versions of Wireshark.

Technical Details of CVE-2023-0413

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability in Wireshark versions 4.0.0 to 4.0.2 and 3.6.0 to 3.6.10 allows for a null pointer dereference, leading to denial of service attacks through packet injection or manipulated capture files.

Affected Systems and Versions

The versions affected by CVE-2023-0413 include Wireshark 4.0.0 to 4.0.2 and 3.6.0 to 3.6.10. Systems running these versions are vulnerable to the exploit.

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious packets or using specially crafted capture files to trigger the null pointer dereference in Wireshark, resulting in denial of service.

Mitigation and Prevention

To mitigate the risks associated with CVE-2023-0413, immediate steps should be taken, followed by the implementation of long-term security practices and applying patches and updates.

Immediate Steps to Take

Immediately updating Wireshark to versions beyond 4.0.2 and 3.6.10 or applying the necessary security patches is crucial to mitigate the risk posed by CVE-2023-0413.

Long-Term Security Practices

Implementing network segmentation, access controls, and regular security audits can contribute to overall network security and help prevent similar vulnerabilities in the future.

Patching and Updates

Regularly monitoring for security updates from Wireshark Foundation and promptly applying patches to address known vulnerabilities is essential in maintaining a secure network environment.