Advisory Details

April 26th, 2021

Foxit Studio Photo PSP File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability

ZDI-21-481
ZDI-CAN-12443

CVE ID CVE-2021-31438
CVSS SCORE 7.8, (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
AFFECTED VENDORS Foxit
AFFECTED PRODUCTS Studio Photo
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Studio Photo. 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 handling of PSP files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.

ADDITIONAL DETAILS Foxit has issued an update to correct this vulnerability. More details can be found at:
https://www.foxitsoftware.com/support/security-bulletins.html
DISCLOSURE TIMELINE
  • 2020-12-04 - Vulnerability reported to vendor
  • 2021-04-26 - Coordinated public release of advisory
CREDIT Francis Provencher {PRL}
BACK TO ADVISORIES