Foxit Reader 9.0.1.5096 signatureSetSeedValue use after free

Summaryinfo

A vulnerability has been found in Foxit Reader 9.0.1.5096 and classified as critical. This vulnerability affects the function signatureSetSeedValue. Performing a manipulation results in use after free. This vulnerability was named CVE-2018-14309. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in Foxit Reader 9.0.1.5096 (Document Reader Software). It has been classified as critical. This affects the function signatureSetSeedValue. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader 9.1.0.5096. 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 SeedValue Generic Object parameter provided to the signatureSetSeedValue function. 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-6329.

The bug was discovered 07/19/2018. The weakness was presented 07/31/2018 (Website). The advisory is shared at foxitsoftware.com. This vulnerability is uniquely identified as CVE-2018-14309 since 07/16/2018. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 12 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

See VDB-82783, VDB-82784, VDB-82785 and VDB-82786 for similar entries. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Document Reader Software

Vendor

• Foxit

Name

• Reader

Version

• 9.0.1.5096

License

• free

Website

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

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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