Adobe Acrobat Pro DC EMF Parsing Untrusted Pointer Dereference Remote Code Execution Vulnerability

December 17th, 2018
ZDI-18-1421 ZDI-CAN-6720

CVE ID

CVE-2018-12845

CVSS Score

7.8 AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Vendors

Adobe

Affected Products

Reader

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 parsing of EMF files. The issue results from the lack of proper validation of a user-supplied value prior to dereferencing it as a pointer. An attacker can leverage this vulnerability to execute code in 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/apsb18-30.html

Disclosure Timeline

  • 2018-09-06 - Vulnerability reported to vendor
  • 2018-12-17 - Coordinated public release of advisory
  • 2023-06-22 - Advisory Updated

Credit

GDPR

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