CVE-2018-3993: Use After Free
First published: Wed Oct 03 2018(Updated: )
An exploitable use-after-free vulnerability exists in the JavaScript engine of Foxit Software's Foxit PDF Reader version 9.2.0.9297. A specially crafted PDF document can trigger a previously freed object in memory to be reused, resulting in arbitrary code execution. An attacker needs to trick the user to open the malicious file to trigger this vulnerability. If the browser plugin extension is enabled, visiting a malicious site can also trigger the vulnerability.
Credit: talos-cna@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Foxit PhantomPDF | <=9.2.0.9297 | |
| Foxit Reader for Windows | <=9.2.0.9297 | |
| Microsoft Windows |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2018-3993?
CVE-2018-3993 is classified as a high severity vulnerability due to its potential for arbitrary code execution.
How do I fix CVE-2018-3993?
To fix CVE-2018-3993, users should update Foxit PDF Reader or PhantomPDF to the latest version above 9.2.0.9297.
What causes CVE-2018-3993?
CVE-2018-3993 is caused by a use-after-free vulnerability in the JavaScript engine of affected Foxit PDF products.
Can CVE-2018-3993 be exploited remotely?
Yes, CVE-2018-3993 can be exploited remotely by tricking a user into opening a specially crafted PDF document.
What products are affected by CVE-2018-3993?
CVE-2018-3993 affects Foxit Reader for Windows and Foxit PhantomPDF versions up to 9.2.0.9297.
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- version/foxit phantompdf/9.2.0.9297
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- version/foxit reader for windows/9.2.0.9297
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- canonical/microsoft windows