CVE-2018-14343 : Security Advisory and Response
Learn about CVE-2018-14343 affecting Wireshark versions 2.6.0 to 2.6.1, 2.4.0 to 2.4.7, and 2.2.0 to 2.2.15. Find out the impact, affected systems, exploitation mechanism, and mitigation steps.
Wireshark versions 2.6.0 to 2.6.1, 2.4.0 to 2.4.7, and 2.2.0 to 2.2.15 encountered a crash issue with the ASN.1 BER dissector due to exceeding maximum signed integer values.
Understanding CVE-2018-14343
This CVE entry addresses a vulnerability in Wireshark versions that led to a crash issue in the ASN.1 BER dissector.
What is CVE-2018-14343?
The versions of Wireshark mentioned experienced a crash issue with the ASN.1 BER dissector due to exceeding maximum signed integer values.
The Impact of CVE-2018-14343
The vulnerability could cause Wireshark to crash, potentially leading to denial of service or other security implications.
Technical Details of CVE-2018-14343
This section provides technical details about the vulnerability.
Vulnerability Description
The issue in Wireshark versions was caused by exceeding the maximum signed integer values in the ASN.1 BER dissector.
Affected Systems and Versions
- Wireshark versions 2.6.0 to 2.6.1
- Wireshark versions 2.4.0 to 2.4.7
- Wireshark versions 2.2.0 to 2.2.15
Exploitation Mechanism
The crash issue was triggered by length values exceeding the maximum signed integer, impacting the ASN.1 BER dissector.
Mitigation and Prevention
Protect your systems from CVE-2018-14343 with the following steps:
Immediate Steps to Take
- Update Wireshark to the latest version.
- Apply patches provided by the vendor.
Long-Term Security Practices
- Regularly update and patch software to address vulnerabilities.
- Monitor security advisories for Wireshark and other software used.
Patching and Updates
Ensure timely installation of security patches and updates to mitigate the risk of this vulnerability.