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CVE-2019-6733: ZDI-19-139

This vulnerability allows remote attackers to disclose sensitive information on vulnerable installations of Foxit PhantomPDF. 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 handling of PDF files. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the current process. Was ZDI-CAN-7576.

CVE
#vulnerability#php#pdf

January 25th, 2019

Foxit PhantomPDF PDF Parsing Out-Of-Bounds Read Information Disclosure Vulnerability****ZDI-19-139
ZDI-CAN-7576

CVE ID

CVE-2019-6733

CVSS SCORE

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

AFFECTED VENDORS

Foxit

AFFECTED PRODUCTS

PhantomPDF

VULNERABILITY DETAILS

This vulnerability allows remote attackers to disclose sensitive information on vulnerable installations of Foxit PhantomPDF. 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 handling of PDF files. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the current process.

ADDITIONAL DETAILS

Foxit has issued an update to correct this vulnerability. More details can be found at:
https://www.foxitsoftware.com/support/security-bulletins.php

DISCLOSURE TIMELINE

  • 2018-11-16 - Vulnerability reported to vendor
  • 2019-01-25 - Coordinated public release of advisory

CREDIT

Anonymous

BACK TO ADVISORIES

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