Advisory Details

April 11th, 2017

Adobe Reader DC Weblink Out-Of-Bounds Read Information Disclosure Vulnerability

ZDI-17-250
ZDI-CAN-4201

CVE ID CVE-2017-3020
CVSS SCORE 4.3, AV:N/AC:M/Au:N/C:P/I:N/A:N
AFFECTED VENDORS Adobe
AFFECTED PRODUCTS Acrobat Reader DC
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID ['26491']. For further product information on the TippingPoint IPS: http://www.tippingpoint.com
VULNERABILITY DETAILS


This vulnerability allows a remote attacker to disclose sensitive information on vulnerable installations of Adobe Reader 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 Weblink plugin. The process does not properly validate user-supplied data which can result in a read past the end of an allocated object. An attacker can leverage this in conjunction with other vulnerabilities to execute code under the context of the current process.

ADDITIONAL DETAILS Adobe has issued an update to correct this vulnerability. More details can be found at:
https://helpx.adobe.com/security/products/acrobat/apsb17-11.html
DISCLOSURE TIMELINE
  • 2016-11-30 - Vulnerability reported to vendor
  • 2017-04-11 - Coordinated public release of advisory
CREDIT Ke Liu of Tencent's Xuanwu LAB
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