Advisory Details

February 23rd, 2018

Adobe Reader DC XFA dashDot Use-After-Free Remote Code Execution Vulnerability

CVE ID	CVE-2018-4888
CVSS SCORE	6.8, AV:N/AC:M/Au:N/C:P/I:P/A:P
AFFECTED VENDORS	Adobe
AFFECTED PRODUCTS	Acrobat Reader DC
VULNERABILITY DETAILS	This vulnerability allows remote attackers to execute arbitrary code 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 processing of XFA forms in PDF documents. A crafted dashDot attribute in an XFA form can cause a pointer to be reused after it has been freed. An attacker can leverage this vulnerability 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/apsb18-02.html
DISCLOSURE TIMELINE	2017-10-26 - Vulnerability reported to vendor 2018-02-23 - Coordinated public release of advisory 2018-02-23 - Advisory Updated
CREDIT	Sebastian Apelt siberas

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