Advisory Details

April 20th, 2018

Foxit Reader BMP Image Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability

CVE ID	CVE-2018-9947
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 the parsing of BMP images. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length, heap-based buffer. An attacker can leverage this vulnerability to execute 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
DISCLOSURE TIMELINE	2018-01-10 - Vulnerability reported to vendor 2018-04-20 - Coordinated public release of advisory 2018-04-20 - Advisory Updated
CREDIT	willJ of Tencent PC Manager

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