Advisory Details

April 15th, 2019

Microsoft Windows EMF File Uninitialized Pointer Remote Code Execution Vulnerability

ZDI-19-362
ZDI-CAN-8329

CVE ID CVE-2019-0853
CVSS SCORE 7.8, (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
AFFECTED VENDORS Microsoft
AFFECTED PRODUCTS Windows
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Microsoft 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 the handling of EMF graphics. The issue results from the lack of proper initialization of a pointer prior to accessing it. An attacker can leverage this vulnerability to execute code under the context of the current process.

ADDITIONAL DETAILS Microsoft has issued an update to correct this vulnerability. More details can be found at:
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0853
DISCLOSURE TIMELINE
  • 2019-03-11 - Vulnerability reported to vendor
  • 2019-04-15 - Coordinated public release of advisory
CREDIT Hossein Lotfi of Trend Micro Zero Day Initiative
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