KLA10891 Multiple vulnerabilities in Foxit Reader

Multiple serious vulnerabilities have been found in Foxit Reader. Malicious users can exploit these vulnerabilities to cause denial of service, execute arbitrary code or obtain sensitive information.

Below is a complete list of vulnerabilities

1. Heap corruption at thumbnail shell extension plugin can be exploited remotely to cause denial of service via a specially designed PDF document;
2. Multiple out of bounds read/write vulnerabilities can be exploited remotely to execute arbitrary code via a specially designed PDF document;
3. Out of bounds read at ConvertToPDF plugin can be exploited remotely to cause denial of service via a specially designed TIFF image.

Technical details

Vulnerability (1) related to FoxitThumbnailHndlr_x86.dll and can be exploited via a specially designed JPEG2000 image embedded in a PDF document.

Vulnerabilities under point (2):

– can be triggered when gflags app is enabled and can be exploited via a specially designed BMP or TIFF image embedded in the XFA stream in a PDF document.

– can be exploited via a specially designed JPEG2000 image embedded in a PDF document.

Vulnerability (3) can be triggered when gflags app is enabled.

Original advisories

Foxit Software security bulletins page

Related products

Foxit-Reader

CVE list

CVE-2016-8879 warning

CVE-2016-8878 high

CVE-2016-8877 high

CVE-2016-8876 high

CVE-2016-8875 warning

Solution

Update to the latest version

Foxit Reader download page

Impacts

• ACE

Arbitrary code execution. Exploitation of vulnerabilities with this impact can lead to executing by abuser any code or commands at vulnerable machine or process.

• OSI

Obtain sensitive information. Exploitation of vulnerabilities with this impact can lead to capturing by abuser information, critical for user or system.

• DoS

Denial of service. Exploitation of vulnerabilities with this impact can lead to loss of system availability or critical functional fault.

Affected Products

• Foxit Reader versions earlier than 8.1