Foxit Reader up to 9.2.0.9297 getAttribute use after free

Summaryinfo

A vulnerability classified as critical has been found in Foxit Reader up to 9.2.0.9297. This affects the function getAttribute. Performing a manipulation results in use after free. This vulnerability was named CVE-2018-17638. The attack may be initiated remotely. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Foxit Reader up to 9.2.0.9297 (Document Reader Software). This affects the function getAttribute. 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 9.2.0.9297. 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 getAttribute method. 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 in the context of the current process. Was ZDI-CAN-6474.

The bug was discovered 10/11/2018. The weakness was presented 01/24/2019 (Website). It is possible to read the advisory at foxitsoftware.com. This vulnerability is uniquely identified as CVE-2018-17638 since 09/28/2018. 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 of the vulnerability are known, but there is no available exploit.

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.

See VDB-82783, VDB-82784, VDB-82785 and VDB-82786 for similar entries. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• Document Reader Software

Vendor

• Foxit

Name

• Reader

Version

• 9.2.0.9297

License

• free

Website

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

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

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

Discussion