IrfanView PSP File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability

July 26th, 2024
ZDI-24-969 ZDI-CAN-23216

CVE ID

CVE-2024-6817

CVSS Score

7.8 AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Vendors

IrfanView

Affected Products

IrfanView

Vulnerability Details

This vulnerability allows remote attackers to execute arbitrary code on affected installations of IrfanView. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the parsing of PSP files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.

Additional Details

Fixed with formats plugin: https://www.irfanview.net/plugins/formats_64.zip


Disclosure Timeline

  • 2024-02-13 - Vulnerability reported to vendor
  • 2024-07-26 - Coordinated public release of advisory
  • 2024-08-15 - Advisory Updated

Credit

Anonymous

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