Advisory Details

March 23rd, 2018

Microsoft Windows JavaScript Typed Array JIT Optimization Use-After-Free Remote Code Execution Vulnerability

ZDI-17-1015
ZDI-CAN-5215

CVE ID CVE-2017-11837
CVSS SCORE 6.8, (AV:N/AC:M/Au:N/C:P/I:P/A:P)
AFFECTED VENDORS Microsoft
AFFECTED PRODUCTS Windows
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 29848. For further product information on the TippingPoint IPS: http://www.tippingpoint.com
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 JavaScript typed arrays in jscript9.dll. By performing actions in JavaScript, an attacker 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 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-2017-11837
DISCLOSURE TIMELINE
  • 2017-10-03 - Vulnerability reported to vendor
  • 2018-03-23 - Coordinated public release of advisory
  • 2018-03-23 - Advisory Updated
CREDIT Anonymous
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