Advisory Details

May 15th, 2018

Adobe Acrobat Pro DC EMF EMR_STRETCHDIBITS Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability

ZDI-18-438
ZDI-CAN-5469

CVE ID CVE-2018-4950
CVSS SCORE 6.8, AV:N/AC:M/Au:N/C:P/I:P/A:P
AFFECTED VENDORS Adobe
AFFECTED PRODUCTS Acrobat Pro DC
VULNERABILITY DETAILS


This vulnerability allows remote attackers to execute arbitrary code 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 EMR_STRETCHDIBITS record in EMF files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated object. 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/apsb18-09.html
DISCLOSURE TIMELINE
  • 2018-01-26 - Vulnerability reported to vendor
  • 2018-05-15 - Coordinated public release of advisory
  • 2018-05-15 - Advisory Updated
CREDIT Anonymous
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