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CVE-2020-6146 Explained : Impact and Mitigation

Learn about CVE-2020-6146, a high-severity code execution vulnerability in Nitro Pro versions 13.13.2.242 and 13.16.2.300. Find out the impact, affected systems, and mitigation steps.

An exploitable code execution vulnerability exists in the rendering functionality of Nitro Pro 13.13.2.242 and 13.16.2.300. When drawing the contents of a page and selecting the stroke color from an 'ICCBased' colorspace, the application can lead to a heap-based buffer overflow.

Understanding CVE-2020-6146

This CVE involves a vulnerability in Nitro Pro that could allow an attacker to execute arbitrary code on a victim's system.

What is CVE-2020-6146?

The vulnerability in Nitro Pro versions 13.13.2.242 and 13.16.2.300 allows for code execution due to a heap-based buffer overflow when processing specially crafted documents.

The Impact of CVE-2020-6146

The CVSS score for this vulnerability is 8.8, indicating a high severity level. The attack complexity is low, but the confidentiality, integrity, and availability impacts are all high. User interaction is required for exploitation.

Technical Details of CVE-2020-6146

This section provides more in-depth technical information about the vulnerability.

Vulnerability Description

The issue arises when the application reads a length from a file and uses it as a loop sentinel when writing data into an object member, potentially causing a heap-based buffer overflow.

Affected Systems and Versions

        Product: Nitro Pro
        Versions: 13.13.2.242, 13.16.2.300

Exploitation Mechanism

A specially crafted document needs to be loaded by a victim to trigger this vulnerability, allowing an attacker to execute malicious code.

Mitigation and Prevention

To address CVE-2020-6146, follow these mitigation strategies:

Immediate Steps to Take

        Update Nitro Pro to a patched version that addresses the vulnerability.
        Avoid opening or interacting with untrusted or suspicious documents.

Long-Term Security Practices

        Regularly update software and applications to the latest versions.
        Educate users on safe document handling practices to prevent exploitation.

Patching and Updates

Ensure that Nitro Pro is regularly updated with the latest security patches to mitigate the risk of exploitation.

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