CVE-2020-7823 : Security Advisory and Response

DaviewIndy has a memory corruption vulnerability that could allow attackers to execute arbitrary code by exploiting a mishandling of malformed image files.

Understanding CVE-2020-7823

This CVE involves multiple vulnerabilities in DaviewIndy.

What is CVE-2020-7823?

CVE-2020-7823 is a memory corruption vulnerability in DaviewIndy that occurs when a user opens a malformed image file, leading to potential arbitrary code execution.

The Impact of CVE-2020-7823

The vulnerability has a CVSS base score of 7.8, indicating a high severity level with impacts on confidentiality, integrity, and availability. Attackers can exploit this issue without requiring privileges.

Technical Details of CVE-2020-7823

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability in DaviewIndy is triggered by opening a malformed image file, mishandled by Daview.exe, allowing attackers to execute arbitrary code.

Affected Systems and Versions

Affected Platforms: x86, x64
Affected Product: DaviewIndy
Vendor: HumanTalk Co,Ltd
Affected Versions: <= 8.98.7 (custom version)

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Local
Privileges Required: None
User Interaction: Required
Scope: Unchanged
Vector String: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Mitigation and Prevention

Protect your systems from CVE-2020-7823 with these mitigation strategies.

Immediate Steps to Take

Update DaviewIndy to version 8.98.8 or higher.

Long-Term Security Practices

Regularly update software and apply security patches.
Educate users on safe browsing habits and file handling practices.

Patching and Updates

Ensure timely installation of software updates and security patches to prevent exploitation of vulnerabilities.