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Adobe Acrobat Reader DC XFA exclGroup Out-Of-Bounds Read Information Disclosure Vulnerability

Reference ID: SSA-1608
Publication date: 11.10.2016
Severity: critical
Discovered by: Sebastian Apelt

Affected products/versions:
Adobe Acrobat Reader DC (15.017.20053 and earlier versions)

This vulnerability allows remote attackers to disclose sensitive information on vulnerable installations of Adobe Acrobat 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 handling of exclGroup objects. 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 arbitrary code in the context of the current process.

References:
ZDI-16-557
CVE-2016-6950
Adobe Security Bulletin APSB16-33