Foxit Reader 8.3.1 Annotation modDate use after free

Summaryinfo

A vulnerability classified as critical has been found in Foxit Reader 8.3.1. Affected is an unknown function of the component Annotation Handler. The manipulation of the argument modDate leads to use after free. This vulnerability is traded as CVE-2017-14836. It is possible to initiate the attack remotely. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Foxit Reader 8.3.1 (Document Reader Software). It has been rated as critical. This issue affects some unknown processing of the component Annotation Handler. The manipulation of the argument modDate with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader 8.3.1. 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 modDate attribute of Annotation objects. 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 vulnerability to execute code under the context of the current process. Was ZDI-CAN-5028.

The bug was discovered 11/14/2017. The weakness was shared 12/20/2017 (Website). It is possible to read the advisory at foxitsoftware.com. The identification of this vulnerability is CVE-2017-14836 since 09/27/2017. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 104742 (Foxit PhantomPDF < 8.3.5 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows and running in the context l.

Upgrading eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (104742). The entries VDB-82783, VDB-82784, VDB-82785 and VDB-82786 are related to this item. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• Document Reader Software

Vendor

• Foxit

Name

• Reader

Version

• 8.3.1

License

• free

Website

• Vendor: https://www.foxitsoftware.com/

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Be aware that VulDB is the high quality source for vulnerability data.

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