CVE-2017-11190 : What You Need to Know

In the presence of _DEBUG_LOG mode, unrarlib.c in unrar-free 0.0.1 could be exploited by malicious individuals to trigger a denial of service (crash of the application and stack-based buffer overflow) or potentially cause other unidentified consequences. This could occur through the utilization of an RAR archive that comprises an excessively long filename.

Understanding CVE-2017-11190

This CVE entry describes a vulnerability in unrar-free 0.0.1 that could lead to a denial of service and potential stack-based buffer overflow.

What is CVE-2017-11190?

CVE-2017-11190 is a vulnerability in unrar-free 0.0.1 that allows remote attackers to cause a denial of service or potentially have other impacts via a specially crafted RAR archive.

The Impact of CVE-2017-11190

The vulnerability could result in a denial of service (application crash) and a stack-based buffer overflow, potentially leading to other unidentified consequences.

Technical Details of CVE-2017-11190

This section provides technical details of the vulnerability.

Vulnerability Description

The vulnerability exists in unrarlib.c in unrar-free 0.0.1 when _DEBUG_LOG mode is enabled, allowing remote attackers to exploit it.

Affected Systems and Versions

Affected Product: unrar-free 0.0.1
Affected Version: Not applicable

Exploitation Mechanism

The vulnerability can be exploited by utilizing an RAR archive with an excessively long filename.

Mitigation and Prevention

Protecting systems from CVE-2017-11190 requires immediate actions and long-term security practices.

Immediate Steps to Take

Disable _DEBUG_LOG mode if not essential
Avoid opening RAR archives from untrusted sources

Long-Term Security Practices

Regularly update software and apply patches
Conduct security assessments and audits periodically

Patching and Updates

Ensure that unrar-free is updated to a patched version to mitigate the vulnerability.