Foxit Reader ConvertToPDF TIFF Parsing Out-Of-Bounds Read Information Disclosure VulnerabilityZDI-17-133: March 9th, 2017
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 the parsing of TIFF images. 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 object. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the current process.
Vendor ResponseFoxit has issued an update to correct this vulnerability. More details can be found at:
2017-01-03 - Vulnerability reported to vendor
2017-03-09 - Coordinated public release of advisory
CreditThis vulnerability was discovered by:
Ke Liu of Tencent's Xuanwu LAB