CVE-2019-13619 : Exploit Details and Defense Strategies

Wireshark versions from 3.0.0 to 3.0.2, 2.6.0 to 2.6.9, and 2.4.0 to 2.4.15 had a vulnerability in the ASN.1 BER dissector that could lead to a crash. The issue has been resolved.

Understanding CVE-2019-13619

This CVE pertains to a vulnerability in Wireshark versions that could cause a crash due to issues in the ASN.1 BER dissector.

What is CVE-2019-13619?

Wireshark versions 3.0.0 to 3.0.2, 2.6.0 to 2.6.9, and 2.4.0 to 2.4.15 were susceptible to a vulnerability in the ASN.1 BER dissector, potentially leading to a crash.

The Impact of CVE-2019-13619

The vulnerability could allow attackers to crash Wireshark by exploiting the ASN.1 BER dissector and related dissectors.

Technical Details of CVE-2019-13619

Wireshark vulnerability details and affected systems.

Vulnerability Description

The vulnerability in Wireshark versions allowed the ASN.1 BER dissector and related dissectors to crash the application.

Affected Systems and Versions

Wireshark versions 3.0.0 to 3.0.2
Wireshark versions 2.6.0 to 2.6.9
Wireshark versions 2.4.0 to 2.4.15

Exploitation Mechanism

Attackers could exploit the vulnerability by manipulating the ASN.1 BER dissector and related dissectors to cause a crash.

Mitigation and Prevention

Steps to mitigate and prevent the CVE-2019-13619 vulnerability.

Immediate Steps to Take

Update Wireshark to the latest version that includes the fix.
Avoid opening suspicious or untrusted capture files.
Monitor vendor advisories for any additional security recommendations.

Long-Term Security Practices

Regularly update Wireshark and other software to patch vulnerabilities.
Implement network segmentation to limit the impact of potential attacks.

Patching and Updates

Ensure that Wireshark is regularly updated to the latest version to prevent exploitation of known vulnerabilities.