URL Rewrite 2.0 leaks memory when an outgoing rule is processed against a multivalue server variable

Applies to: Internet Information Services 8.5Internet Information Services 8.0Internet Information Services 8.0 Express

Symptoms


When an outgoing rule is processed against a multivalue server variable, Internet Information Services (IIS) URL Rewrite 2.0 may leak memory. This problem occurs if the rule does not match all the values of the variable. For example, if there is an outgoing rule that changes a specific cookie in the Set-Cookie: header when there are multiple cookies set on a response, URL Rewrite may leak memory on each request in which the outgoing rule occurs.

Cause


This problem occurs because of an error in URL Rewrite 2.0.

Resolution


Hotfix information

The following file is available for download from the Microsoft Download Center:


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Prerequisites

There are no prerequisites for installing this hotfix.

Restart information

You must restart the computer after you apply this hotfix.

Replacement information

This hotfix does not replace any previously released hotfix.

File information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

For all supported x86-based versions of IIS URL Rewrite 2.0
File nameFile versionFile sizeDateTimePlatform
Rewrite.dll7.1.1917.0310,95229-May-201422:53x86
For all supported x64-based versions of IIS URL Rewrite 2.0
File nameFile versionFile sizeDateTimePlatform
Rewrite.dll7.1.1917.0389,80029-May-201422:53x64

Status


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

References


Learn about the terminology that Microsoft uses to describe software updates.