Headline
CVE-2019-6758: ZDI-19-432
This vulnerability allows remote attackers to disclose sensitive information on vulnerable installations of Foxit Reader 9.4.16811. 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 ConvertToPDF_x86.dll. 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 code in the context of the current process. Was ZDI-CAN-7701.
April 29th, 2019
Foxit Reader ConvertToPDF JPG File Parsing Use-After-Free Information Disclosure Vulnerability****ZDI-19-432
ZDI-CAN-7701
CVE ID
CVE-2019-6758
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
Reader
VULNERABILITY DETAILS
This vulnerability allows remote attackers to disclose sensitive information on vulnerable installations of Foxit Reader. 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 ConvertToPDF_x86.dll. 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 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
- 2019-01-15 - Vulnerability reported to vendor
- 2019-04-29 - Coordinated public release of advisory
CREDIT
Hao Li from ADLab of VenusTech
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