Microsoft Internet Explorer first-letter Use-After-Free Remote Code Execution Vulnerability

ID ZDI-14-285
Type zdi
Reporter Omair
Modified 2014-06-22T00:00:00


This vulnerability allows remote attackers to execute arbitrary code 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 the styling of first-letter elements. By manipulating a document's elements and styles an attacker can force a dangling 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.