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CVE-2022-42414: ZDI-22-1342

This vulnerability allows remote attackers to disclose sensitive information 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 PDF files. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process. Was ZDI-CAN-18326.

CVE
#vulnerability#pdf

October 7th, 2022

PDF-XChange Editor PDF File Parsing Use-After-Free Information Disclosure Vulnerability****ZDI-22-1342
ZDI-CAN-18326

CVE ID

CVE-2022-42414

CVSS SCORE

3.3, (AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N)

AFFECTED VENDORS

PDF-XChange

AFFECTED PRODUCTS

PDF-XChange Editor

VULNERABILITY DETAILS

This vulnerability allows remote attackers to disclose sensitive information 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 PDF files. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary 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

  • 2022-08-19 - Vulnerability reported to vendor
  • 2022-10-07 - Coordinated public release of advisory

CREDIT

Rocco Calvi (@TecR0c) with TecSecurity

BACK TO ADVISORIES

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