CVE-2019-5020 : What You Need to Know

Yara Object 3.8.1 contains a vulnerability that can lead to denial of service when exploited. Attackers can trigger a denial of service condition by manipulating binary files.

Understanding CVE-2019-5020

The vulnerability in Yara Object 3.8.1 can be exploited to cause denial of service through carefully crafted binary files.

What is CVE-2019-5020?

The object lookup feature of Yara 3.8.1 has a vulnerability that, when exploited, can lead to a denial of service. By creating a specific binary file, attackers can cause the program to read a negative value, triggering a denial of service condition.

The Impact of CVE-2019-5020

CVSS Base Score: 6.5 (Medium)
Attack Vector: Network
Attack Complexity: Low
Availability Impact: High
Privileges Required: None
User Interaction: Required
Scope: Unchanged
Vulnerability Type: CWE-617: Reachable Assertion

Technical Details of CVE-2019-5020

Yara Object 3.8.1 vulnerability details and mitigation steps.

Vulnerability Description

The vulnerability allows attackers to exploit the object lookup functionality of Yara 3.8.1, leading to a denial of service by manipulating binary files.

Affected Systems and Versions

Affected Product: Yara Object
Affected Version: Yara 3.8.1

Exploitation Mechanism

Attackers can exploit the vulnerability by creating a malicious binary file that causes the program to read a negative value, triggering a denial of service condition.

Mitigation and Prevention

Protecting systems from CVE-2019-5020.

Immediate Steps to Take

Update Yara Object to a patched version.
Implement network security measures to detect and block malicious binary files.

Long-Term Security Practices

Regularly update software and security patches.
Conduct security audits to identify and address vulnerabilities.

Patching and Updates

Apply patches provided by the vendor to fix the vulnerability.