CVE-2018-7322 : Vulnerability Insights and Analysis
Learn about CVE-2018-7322 affecting Wireshark versions 2.4.0 to 2.4.4 and 2.2.0 to 2.2.12. Discover the impact, technical details, and mitigation steps for this infinite loop vulnerability.
Wireshark versions 2.4.0 to 2.4.4 and 2.2.0 to 2.2.12 were affected by an infinite loop vulnerability in epan/dissectors/packet-dcm.c, which allowed for integer wraparound. This CVE was published on February 23, 2018.
Understanding CVE-2018-7322
This CVE addresses a specific vulnerability in Wireshark versions 2.4.0 to 2.4.4 and 2.2.0 to 2.2.12 related to an infinite loop issue.
What is CVE-2018-7322?
The vulnerability in epan/dissectors/packet-dcm.c in Wireshark versions 2.4.0 to 2.4.4 and 2.2.0 to 2.2.12 allowed for an infinite loop due to a lack of proper integer wraparound checks.
The Impact of CVE-2018-7322
This vulnerability could potentially lead to a denial of service (DoS) condition by causing Wireshark to consume excessive resources or crash.
Technical Details of CVE-2018-7322
Wireshark versions 2.4.0 to 2.4.4 and 2.2.0 to 2.2.12 were affected by this vulnerability.
Vulnerability Description
The issue stemmed from a lack of integer wraparound checks in the epan/dissectors/packet-dcm.c file, leading to an infinite loop.
Affected Systems and Versions
- Wireshark versions 2.4.0 to 2.4.4
- Wireshark versions 2.2.0 to 2.2.12
Exploitation Mechanism
An attacker could exploit this vulnerability by crafting a malicious packet that triggers the infinite loop, potentially causing a DoS condition.
Mitigation and Prevention
It is crucial to take immediate steps to address and prevent the exploitation of CVE-2018-7322.
Immediate Steps to Take
- Update Wireshark to versions beyond 2.4.4 and 2.2.12 that contain the fix for this vulnerability.
- Monitor network traffic for any signs of exploitation.
Long-Term Security Practices
- Regularly update Wireshark and other software to the latest versions to patch known vulnerabilities.
- Implement network segmentation and access controls to limit the impact of potential attacks.
Patching and Updates
Ensure that all systems running affected versions of Wireshark are promptly updated to versions that address the infinite loop vulnerability.