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