Advisory Details

November 14th, 2017

Adobe Acrobat Pro DC XPS TIFF Rational Data Parsing Out-Of-Bounds Read Information Disclosure Vulnerability

CVE ID	CVE-2017-16382
CVSS SCORE	4.3, (AV:N/AC:M/Au:N/C:P/I:N/A:N)
AFFECTED VENDORS	Adobe
AFFECTED PRODUCTS	Acrobat Pro DC
TIPPINGPOINT™ IPS CUSTOMER PROTECTION	TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 29638. For further product information on the TippingPoint IPS: http://www.tippingpoint.com
VULNERABILITY DETAILS	This vulnerability allows remote attackers to disclose sensitive information on vulnerable installations of Adobe Acrobat Pro DC. 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 the rational data in TIFF images embedded inside XPS files. 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 buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the current process.
VENDOR RESPONSE	Adobe has issued an update to correct this vulnerability. More details can be found at: https://helpx.adobe.com/security/products/acrobat/apsb17-36.html
DISCLOSURE TIMELINE	2017-08-04 - Vulnerability reported to vendor 2017-11-14 - Coordinated public release of advisory
CREDIT	Ke Liu of Tencent's Xuanwu LAB

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