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CVE-2015-2482

Status Candidate

Overview

The Microsoft (1) VBScript 5.7 and 5.8 and (2) JScript 5.7 and 5.8 engines, as used in Internet Explorer 8 through 11 and other products, allow remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted replace operation with a JavaScript regular expression, aka "Scripting Engine Memory Corruption Vulnerability."

Related Files

Microsoft Internet Explorer 8 Javascript RegExpBase::FBadHeader Use-After-Free
Posted Nov 16, 2016
Authored by SkyLined

A specially crafted web-page can cause the Javascript engine of Microsoft Internet Explorer 8 to free memory used for a string. The code will keep a reference to the string and can be forced to reuse it when compiling a regular expression.

tags | exploit, web, javascript
advisories | CVE-2015-2482
MD5 | d8cfc6c827b0efeb64a9441bb0f92bf4
JScript 5.7 RegExpBase::FBadHeader Use-After-Free
Posted Oct 14, 2015
Authored by SkyLined

Recompiling the regular expression pattern during a replace in JScript version 5.7 (MSIE 8) can cause the code to reuse a freed string, but only if the string is freed from the cache by allocating and freeing a number of strings of certain size.

tags | exploit
advisories | CVE-2015-2482
MD5 | 816724b7efdcaff51a07da3473e03a1c
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