Vulnerability Description
An exploitable use-after-free vulnerability exists in the JavaScript engine of Foxit Software's PDF Reader, version 9.1.0.5096. 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Foxitsoftware | Foxit Reader | <= 9.1.0.5096 |
| Foxitsoftware | Phantompdf | <= 9.1.0.5096 |
| Microsoft | Windows | - |
Related Weaknesses (CWE)
References
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0606ExploitTechnical DescriptionThird Party Advisory
- https://www.foxitsoftware.com/support/security-bulletins.phpPatchVendor Advisory
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0606ExploitTechnical DescriptionThird Party Advisory
FAQ
What is CVE-2018-3939?
CVE-2018-3939 is a vulnerability with a CVSS score of 8.8 (HIGH). An exploitable use-after-free vulnerability exists in the JavaScript engine of Foxit Software's PDF Reader, version 9.1.0.5096. A specially crafted PDF document can trigger a previously freed object i...
How severe is CVE-2018-3939?
CVE-2018-3939 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-3939?
Check the references section above for vendor advisories and patch information. Affected products include: Foxitsoftware Foxit Reader, Foxitsoftware Phantompdf, Microsoft Windows.