CVE-2021-22222 : Vulnerability Insights and Analysis
Learn about CVE-2021-22222, an infinite loop vulnerability in Wireshark 3.4.0 to 3.4.5, impacting availability. Find out the impact, affected systems, exploitation, and mitigation steps.
A detailed article outlining the CVE-2021-22222 vulnerability in Wireshark version 3.4.0 to 3.4.5, impacting the availability of the system.
Understanding CVE-2021-22222
This section delves into the nature of the vulnerability and its potential impact.
What is CVE-2021-22222?
The CVE-2021-22222 vulnerability involves an infinite loop in the DVB-S2-BB dissector in Wireshark versions 3.4.0 to 3.4.5. It can be exploited to cause a denial of service through packet injection or a crafted capture file.
The Impact of CVE-2021-22222
The vulnerability's base score of 7.5 out of 10 signifies a high severity level, with a significant impact on the availability of affected systems. Due to the low complexity of attack and high availability impact, it poses a serious threat.
Technical Details of CVE-2021-22222
Explore the specific technical aspects of the CVE-2021-22222 vulnerability.
Vulnerability Description
The vulnerability arises from an infinite loop in the DVB-S2-BB dissector in Wireshark versions 3.4.0 to 3.4.5, allowing attackers to carry out denial-of-service attacks.
Affected Systems and Versions
Wireshark versions between 3.4.0 and 3.4.5 are impacted by this vulnerability, exposing systems within this range to potential exploitation.
Exploitation Mechanism
Attackers can exploit this vulnerability by injecting malicious packets or utilizing a specially crafted capture file to trigger the infinite loop and disrupt the system.
Mitigation and Prevention
Discover the measures to mitigate and prevent the exploitation of CVE-2021-22222.
Immediate Steps to Take
To mitigate the risk, users are advised to update Wireshark to version 3.4.6 or newer to address the vulnerability and prevent exploitation.
Long-Term Security Practices
Implementing robust network monitoring and traffic analysis practices can enhance system security and help detect abnormalities or potential vulnerabilities.
Patching and Updates
Regularly applying security patches and updates to Wireshark and other software components is crucial to maintaining a secure environment and safeguarding against known vulnerabilities.