CVE-2020-7818 : Security Advisory and Response

DaviewIndy 8.98.9 and earlier versions contain a Heap-based overflow vulnerability that can be exploited by attackers to execute arbitrary code when a user opens a malformed PDF file.

Understanding CVE-2020-7818

This CVE involves a critical vulnerability in DaviewIndy software that could lead to arbitrary code execution.

What is CVE-2020-7818?

The vulnerability in DaviewIndy versions 8.98.9 and earlier allows attackers to trigger a Heap-based overflow by manipulating PDF files, potentially leading to the execution of malicious code.

The Impact of CVE-2020-7818

The impact of this vulnerability is rated as HIGH, with a CVSS base score of 7.8. It affects confidentiality, integrity, and availability, requiring user interaction for exploitation.

Technical Details of CVE-2020-7818

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability is a Heap-based overflow in DaviewIndy, triggered by opening malformed PDF files mishandled by Daview.exe, enabling attackers to execute arbitrary code.

Affected Systems and Versions

Product: DaviewIndy
Vendor: HumanTolk Co.Ltd
Versions Affected: 8.98.9 and earlier

Exploitation Mechanism

Attackers exploit the vulnerability by crafting a malicious PDF file, causing a Heap-based overflow when processed by Daview.exe, leading to arbitrary code execution.

Mitigation and Prevention

To address CVE-2020-7818, users and organizations should take immediate and long-term security measures.

Immediate Steps to Take

Update DaviewIndy to version 8.99.2 or higher to mitigate the vulnerability.

Long-Term Security Practices

Regularly update software and apply security patches to prevent similar vulnerabilities.

Patching and Updates

Ensure timely installation of software updates and security patches to protect systems from known vulnerabilities.