Advisory Details

March 23rd, 2016

Foxit Reader FlateDecode Use-After-Free Remote Code Execution Vulnerability

CVE ID	CVE-2016-4059
CVSS SCORE	6.8, AV:N/AC:M/Au:N/C:P/I:P/A:P
AFFECTED VENDORS	Foxit
AFFECTED PRODUCTS	Reader
VULNERABILITY DETAILS	This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader. 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 FlateDecode. A specially crafted PDF with a specific FlateDecode stream can force a dangling pointer to be reused after it has been freed. An attacker could leverage this vulnerability to execute arbitrary code under the context of the current process.
ADDITIONAL DETAILS	Foxit has issued an update to correct this vulnerability. More details can be found at: https://www.foxitsoftware.com/support/security-bulletins.php Resolved with Foxit Reader 7.3.4
DISCLOSURE TIMELINE	2016-02-16 - Vulnerability reported to vendor 2016-03-23 - Coordinated public release of advisory
CREDIT	Jaanus Kp Clarified Security

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