#VU81419 Out-of-bounds read in PDF-XChange products - CVE-2023-42111

Vulnerability identifier: #VU81419

Vulnerability risk: High

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2023-42111

CWE-ID: CWE-125

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
PDF-XChange Editor
Client/Desktop applications / Office applications
PDF-Tools
Client/Desktop applications / Office applications
PDF-XChange PRO
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 within the parsing of JPG files. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger an out-of-bounds read error and read contents of memory on the system, leading to arbitrary code execution.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

PDF-XChange Editor: 10.1.0.380

PDF-Tools: 10.1.0.380

PDF-XChange PRO: 10.1.0.380

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External links
https://www.zerodayinitiative.com/advisories/ZDI-23-1481/
https://www.tracker-software.com/support/security-bulletins.html

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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.