CVE-2021-22207 : Vulnerability Insights and Analysis

A detailed overview of CVE-2021-22207 affecting Wireshark, including the vulnerability description, impact, technical details, and mitigation steps.

Understanding CVE-2021-22207

This section provides insights into the vulnerability tracked under CVE-2021-22207 affecting Wireshark.

What is CVE-2021-22207?

CVE-2021-22207 highlights excessive memory consumption in the MS-WSP dissector in Wireshark versions 3.4.0 to 3.4.4 and 3.2.0 to 3.2.12, leading to a denial of service through packet injection or crafted capture file.

The Impact of CVE-2021-22207

The impact of this vulnerability is rated as MEDIUM with a CVSS base score of 5.5. It poses a high availability impact through local attack vector and low attack complexity.

Technical Details of CVE-2021-22207

Exploring the specifics of CVE-2021-22207 to understand its implications better.

Vulnerability Description

The vulnerability involves uncontrolled memory allocation in Wireshark, enabling attackers to trigger denial-of-service conditions through malicious packets.

Affected Systems and Versions

Wireshark versions >=3.4.0 and <3.4.5, along with versions >=3.2.0 and <3.2.13, are impacted by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting packets or utilizing crafted capture files to trigger excessive memory consumption, leading to service denial.

Mitigation and Prevention

Guidelines to address and prevent the exploitation of CVE-2021-22207 for enhanced cybersecurity.

Immediate Steps to Take

To mitigate the risk, users are advised to apply official patches provided by Wireshark promptly. Additionally, considering network segmentation to limit exposure is recommended.

Long-Term Security Practices

In the long term, organizations should prioritize regular software updates, security training for users, and network monitoring to detect and prevent similar vulnerabilities.

Patching and Updates

Regularly monitor the Wireshark official channels for security advisories and updates. Ensure timely application of patches to protect systems from potential exploits.