Advisory Details

April 9th, 2025

(Pwn2Own) Lexmark CX331adwe JBIG2 File Parsing new_image Integer Overflow Remote Code Execution Vulnerability

ZDI-25-219
ZDI-CAN-25676

CVE ID CVE-2024-11347
CVSS SCORE 8.8, AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AFFECTED VENDORS Lexmark
AFFECTED PRODUCTS CX331adwe
VULNERABILITY DETAILS

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Lexmark CX331adwe printers. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the parsing of JBIG2 files. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the pagemaker user.

ADDITIONAL DETAILS Lexmark has issued an update to correct this vulnerability. More details can be found at:
https://support.lexmark.com/content/dam/support/collateral/security-alerts/CVE-2024-11347.pdf
DISCLOSURE TIMELINE
  • 2024-11-15 - Vulnerability reported to vendor
  • 2025-04-09 - Coordinated public release of advisory
  • 2025-04-09 - Advisory Updated
CREDIT PHP Hooligans / Midnight Blue
BACK TO ADVISORIES