CVE-2018-5650 : What You Need to Know

Long Range Zip (lrzip) version 0.631 contains a vulnerability in the unzip_match function, leading to an endless loop and application hang. Remote attackers can exploit this flaw to disrupt services by using a crafted lrz file.

Understanding CVE-2018-5650

What is CVE-2018-5650?

In Long Range Zip (lrzip) 0.631, an infinite loop in the unzip_match function in runzip.c allows remote attackers to trigger a denial of service through a malicious lrz file.

The Impact of CVE-2018-5650

This vulnerability can be exploited by remote attackers to cause a denial of service, potentially disrupting the affected service.

Technical Details of CVE-2018-5650

Vulnerability Description

The flaw in the unzip_match function of lrzip version 0.631 results in an infinite loop, leading to application hang.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Version: 0.631

Exploitation Mechanism

Remote attackers can exploit this vulnerability by using a specially crafted lrz file to trigger the infinite loop, causing the application to hang.

Mitigation and Prevention

Immediate Steps to Take

Update lrzip to a patched version that addresses the infinite loop issue.
Avoid opening lrz files from untrusted sources.

Long-Term Security Practices

Regularly update software to the latest versions to patch known vulnerabilities.
Implement network security measures to prevent unauthorized access and attacks.

Patching and Updates

Apply security updates and patches provided by lrzip to mitigate the vulnerability and prevent exploitation.