CVE-2020-23566 Explained : Impact and Mitigation

Irfanview v4.53 was discovered to contain an infinity loop via JPEG2000!ShowPlugInSaveOptions_W+0x1ecd8.

Understanding CVE-2020-23566

This CVE involves an infinity loop vulnerability in Irfanview v4.53 when processing JPEG2000 files.

What is CVE-2020-23566?

The CVE-2020-23566 vulnerability in Irfanview v4.53 allows attackers to trigger an infinite loop by exploiting a specific function related to JPEG2000 file processing.

The Impact of CVE-2020-23566

The vulnerability could lead to a denial of service (DoS) condition, causing the application to become unresponsive or crash.

Technical Details of CVE-2020-23566

This section provides technical details of the CVE.

Vulnerability Description

The vulnerability in Irfanview v4.53 is due to improper handling of JPEG2000 files, leading to an infinite loop when processing certain data.

Affected Systems and Versions

Affected Version: Irfanview v4.53
All systems running this specific version are vulnerable to the exploit.

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting a malicious JPEG2000 file and tricking a user into opening it with the affected version of Irfanview.

Mitigation and Prevention

Protect your systems from CVE-2020-23566 with the following steps.

Immediate Steps to Take

Avoid opening JPEG2000 files from untrusted or unknown sources.
Consider using alternative image viewing software until a patch is available.

Long-Term Security Practices

Keep software and applications updated to prevent known vulnerabilities.
Implement network security measures to detect and block malicious files.

Patching and Updates

Check for updates or patches from Irfanview to address the CVE-2020-23566 vulnerability.