CVE-2022-42418

PDF-XChange Editor TIF File Parsing Untrusted Pointer Dereference Remote Code Execution Vulnerability

CVE ID CVE-2022-42418

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

AFFECTED VENDORS PDF-XChange

AFFECTED PRODUCTS PDF-XChange Editor

VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on affected installations of PDF-XChange Editor. 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 TIF files. The issue results from the lack of proper validation of a user-supplied value prior to dereferencing it as a pointer. An attacker can leverage this vulnerability to execute code in the context of the current process.

ADDITIONAL DETAILS

PDF-XChange has issued an update to correct this vulnerability. More details can be found at:

https://www.tracker-software.com/product/pdf-xchange-editor/history

DISCLOSURE TIMELINE

2022-09-28 - Vulnerability reported to vendor

2022-10-07 - Coordinated public release of advisory

CREDIT Rocco Calvi (@TecR0c) with TecSecurity