Advisory Details

April 20th, 2018

Foxit Reader GIF DataSubBlock Out-Of-Bounds Read Information Disclosure Vulnerability

CVE ID	CVE-2018-1179
CVSS SCORE	4.3, AV:N/AC:M/Au:N/C:P/I:N/A:N
AFFECTED VENDORS	Foxit
AFFECTED PRODUCTS	Reader
VULNERABILITY DETAILS	This vulnerability allows remote attackers to disclose sensitive information 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 DataSubBlock structures in GIF images. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated data structure. An attacker can leverage this in conjunction with other vulnerabilities to execute code in 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	2017-12-19 - Vulnerability reported to vendor 2018-04-20 - Coordinated public release of advisory 2018-04-20 - Advisory Updated
CREDIT	Steven Seeley of Source Incite

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