Foxit Reader 9.2.0.9297 XFA Object Lower out-of-bounds

Summaryinfo

A vulnerability was found in Foxit Reader 9.2.0.9297 and classified as problematic. This affects the function Lower of the component XFA Object Handler. The manipulation results in out-of-bounds. This vulnerability is identified as CVE-2018-17671. The attack can be executed remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in Foxit Reader 9.2.0.9297 (Document Reader Software). Affected is the function Lower of the component XFA Object Handler. The manipulation with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality. CVE summarizes:

This vulnerability allows remote attackers to disclose sensitive information on vulnerable installations of Foxit Reader 9.2.0.9297. 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 the Lower method of a XFA object. 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 vulnerability to execute code in the context of the current process. Was ZDI-CAN-6617.

The bug was discovered 10/11/2018. The weakness was released 01/24/2019 (Website). The advisory is shared for download at foxitsoftware.com. This vulnerability is traded as CVE-2018-17671 since 09/28/2018. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 104 days. During that time the estimated underground price was around $0-$5k.

Upgrading eliminates this vulnerability.

Entries connected to this vulnerability are available at VDB-82783, VDB-82784, VDB-82785 and VDB-82786. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• Document Reader Software

Vendor

• Foxit

Name

• Reader

Version

• 9.2.0.9297

License

• free

Website

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

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Entryinfo

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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