#VU68055 Out-of-bounds read in PDF-XChange Editor - CVE-2022-42401

Vulnerability identifier: #VU68055

Vulnerability risk: Low

CVSSv4.0: 1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-42401

CWE-ID: CWE-125

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
PDF-XChange Editor
Client/Desktop applications / Office applications

Vendor: PDF-XChange

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition when handling PDF files. A remote attacker can create a specially crafted PDF file, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

PDF-XChange Editor: 9.0.350.0 - 9.4.363.0

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External links
https://www.tracker-software.com/product/pdf-xchange-editor/history
https://www.zerodayinitiative.com/advisories/ZDI-22-1364/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.