CVE-2018-5747 : Vulnerability Insights and Analysis

A vulnerability has been discovered in version 0.631 of Long Range Zip (lrzip), specifically in the ucompthread function (stream.c). Exploiting this vulnerability, remote attackers have the ability to trigger a denial of service attack by providing a maliciously crafted lrz file.

Understanding CVE-2018-5747

This CVE entry describes a vulnerability in Long Range Zip (lrzip) version 0.631 that can be exploited by remote attackers to cause a denial of service.

What is CVE-2018-5747?

CVE-2018-5747 is a use-after-free vulnerability in the ucompthread function (stream.c) of Long Range Zip (lrzip) version 0.631. Attackers can exploit this flaw to launch denial of service attacks using a specially crafted lrz file.

The Impact of CVE-2018-5747

The vulnerability allows remote attackers to execute a denial of service attack on systems running the affected lrzip version 0.631. By exploiting this flaw, attackers can disrupt the normal operation of the system.

Technical Details of CVE-2018-5747

This section provides more technical insights into the CVE-2018-5747 vulnerability.

Vulnerability Description

The use-after-free vulnerability in the ucompthread function (stream.c) of Long Range Zip (lrzip) version 0.631 allows remote attackers to trigger a denial of service attack by providing a malicious lrz file.

Affected Systems and Versions

Product: Long Range Zip (lrzip)
Vendor: N/A
Version: 0.631

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting a malicious lrz file and using it to trigger a denial of service attack on systems running lrzip version 0.631.

Mitigation and Prevention

To address CVE-2018-5747 and enhance system security, consider the following mitigation strategies:

Immediate Steps to Take

Update lrzip to a non-vulnerable version if available.
Implement network-level protections to filter out potentially malicious lrz files.

Long-Term Security Practices

Regularly update software and apply security patches promptly.
Conduct security assessments and audits to identify and address vulnerabilities proactively.

Patching and Updates

Stay informed about security updates for lrzip and apply patches as soon as they are released.