Vulnerability CVE-2018-3939


Published: 2018-08-01   Modified: 2018-08-02

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.

Type:

CWE-416

(Use After Free)

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.8/10
6.4/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Foxitsoftware -> Foxit reader 
Foxitsoftware -> Phantompdf 

 References:
https://www.foxitsoftware.com/support/security-bulletins.php
https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0606

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