Advisory Details

November 10th, 2015

Microsoft Internet Explorer CDOMStringDataList::InitFromString Out-Of-Bounds Indexing Information Disclosure Vulnerability

ZDI-15-547
ZDI-CAN-3122

CVE ID CVE-2015-6086
CVSS SCORE 4.3, AV:N/AC:M/Au:N/C:P/I:N/A:N
AFFECTED VENDORS Microsoft
AFFECTED PRODUCTS Internet Explorer
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID ['20822']. For further product information on the TippingPoint IPS: http://www.tippingpoint.com
VULNERABILITY DETAILS


This vulnerability allows remote attackers to disclose sensitive information on vulnerable installations of Microsoft Internet Explorer. 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 CDOMStringDataList::InitFromString. By manipulating a document's elements an attacker can read outside the bounds of an allocated chunk. An attacker can leverage this vulnerability to leak arbitrary memory.
ADDITIONAL DETAILS Microsoft has issued an update to correct this vulnerability. More details can be found at:
https://technet.microsoft.com/library/security/MS15-112
DISCLOSURE TIMELINE
  • 2015-09-08 - Vulnerability reported to vendor
  • 2015-11-10 - Coordinated public release of advisory
CREDIT Ashfaq Ansari - Project Srishti - Payatu Technologies
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