SRC-2015-0001 : Microsoft Windows Journal Use-After-Free Remote Code Execution Vulnerability



CVSS Score:

9.3, (AV:N/AC:M/Au:N/C:C/I:C/A:C)

Affected Vendors:


Affected Products:

All x86 and x64 variants of the following software products are affected:

  • Windows Vista
  • Windows Server 2008
  • Windows 7
  • Windows Server 2008 R2
  • Windows 8 and Windows 8.1
  • Windows Server 2012 and Windows Server 2012 R2
  • Windows RT and Windows RT 8.1

Vulnerability Details:

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Windows. 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 when handling CEpBitmapLayer objects. The NBDoc!CEpCanvas function frees an instance of this object which is later accessed in NBDoc!CEPMRCFormatReader. An attacker could leverage this to execute arbitrary code under the context of the current user.

Vendor Response:

Microsoft has issued an update to correct this vulnerability. More details can be found at:

Disclosure Timeline:

  • 2015-03-21 – Vulnerability reported to vendor
  • 2015-04-15 – Vulnerability confirmed by the vendor
  • 2015-05-12 – Coordinated public release of advisory


This vulnerability was discovered by Steven Seeley of Source Incite