Advisory Details

June 22nd, 2016

Microsoft Windows PDF Library AES Encryption Out-Of-Bounds Read Information Disclosure Vulnerability

CVE ID	CVE-2016-3203
CVSS SCORE	4.3, AV:N/AC:M/Au:N/C:P/I:N/A:N
AFFECTED VENDORS	Microsoft
AFFECTED PRODUCTS	Windows PDF Library
VULNERABILITY DETAILS	This vulnerability allows remote attackers to disclose sensitive information on vulnerable installations of Microsoft Windows PDF Library. 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 handling of AES crypt filters. A crafted Length of an AES crypt filter object can trigger a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process.
ADDITIONAL DETAILS	Microsoft has issued an update to correct this vulnerability. More details can be found at: https://technet.microsoft.com/library/security/MS16-080
DISCLOSURE TIMELINE	2016-05-31 - Vulnerability reported to vendor 2016-06-22 - Coordinated public release of advisory
CREDIT	kdot

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