FIX: Heap memory is corrupted and the server crashes during an FTP session in Windows Embedded Compact 7

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Introduction

This article describes an issue in which memory might be accessed outside the character array boundaries in Windows Embedded Compact 7. An update is available to resolve this issue. Before you install this update, all previously issued updates for this product must be installed.

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Symptoms

When you run an FTP session on a Windows Embedded Compact 7 device, memory might be accessed outside the character array boundaries. In this situation, heap memory is corrupted and the FTP server crashes. Additionally, when you reestablish the FTP session, you receive a memory exception error message.

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Resolution

Software update information

A supported software update is now available from Microsoft as Windows Embedded Compact 7 Monthly Update (March 2015).

Note This Windows Embedded Compact 7 Monthly Update is available for download from the following Microsoft Download Center website:

Windows Embedded Compact 7 updates

Prerequisites

This update is supported only if all previously issued updates for this product have also been installed.

Restart requirement

After you apply this update, you must perform a clean build of the whole platform. To do this, use one of the following methods:

On the Build menu, click Clean Solution, and then click Build Solution.
On the Build menu, click Rebuild Solution.

You do not have to restart the computer after you apply this software update.

Update replacement information

This update does not replace any other updates.

File information

The English version of this software update package 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.

Files that are included in this update package

File name	File size	Date	Time	Path
Kmisc.c	56,077	31-Mar-2015	06:04	Private\Winceos\Coreos\Nk\Kernel
Ftpsession.cpp	43,649	31-Mar-2015	06:04	Public\Servers\Sdk\Samples\Ftpd
Ftpd.lib	3,454	31-Mar-2015	06:26	Public\Servers\Oak\Lib\X86\Retail
Ftpd.lib	3,454	31-Mar-2015	06:27	Public\Servers\Oak\Lib\X86\Debug
Ftpd.lib	3,454	31-Mar-2015	06:27	Public\Servers\Oak\Lib\X86\Checked
Ftpd.lib	3,398	31-Mar-2015	06:29	Public\Servers\Oak\Lib\Armv5\Retail
Ftpd.lib	3,398	31-Mar-2015	06:27	Public\Servers\Oak\Lib\Armv5\Debug
Ftpd.lib	3,398	31-Mar-2015	06:29	Public\Servers\Oak\Lib\Armv5\Checked
Ftpd.lib	3,398	31-Mar-2015	06:31	Public\Servers\Oak\Lib\Armv6\Retail
Ftpd.lib	3,398	31-Mar-2015	06:27	Public\Servers\Oak\Lib\Armv6\Debug
Ftpd.lib	3,398	31-Mar-2015	06:29	Public\Servers\Oak\Lib\Armv6\Checked
Ftpd.lib	3,398	31-Mar-2015	06:30	Public\Servers\Oak\Lib\Armv7\Retail
Ftpd.lib	3,398	31-Mar-2015	06:27	Public\Servers\Oak\Lib\Armv7\Debug
Ftpd.lib	3,398	31-Mar-2015	06:29	Public\Servers\Oak\Lib\Armv7\Checked
Ftpd.lib	3,398	31-Mar-2015	06:30	Public\Servers\Oak\Lib\Mipsii\Retail
Ftpd.lib	3,398	31-Mar-2015	06:27	Public\Servers\Oak\Lib\Mipsii\Debug
Ftpd.lib	3,398	31-Mar-2015	06:28	Public\Servers\Oak\Lib\Mipsii\Checked
Ftpd.lib	3,398	31-Mar-2015	06:28	Public\Servers\Oak\Lib\Mipsii_fp\Retail
Ftpd.lib	3,398	31-Mar-2015	06:27	Public\Servers\Oak\Lib\Mipsii_fp\Debug
Ftpd.lib	3,398	31-Mar-2015	06:29	Public\Servers\Oak\Lib\Mipsii_fp\Checked
Ftpd.lib	3,454	31-Mar-2015	06:28	Public\Servers\Oak\Lib\Sh4\Retail
Ftpd.lib	3,454	31-Mar-2015	06:33	Public\Servers\Oak\Lib\Sh4\Debug
Ftpd.lib	3,454	31-Mar-2015	06:28	Public\Servers\Oak\Lib\Sh4\Checked
Ftpd.dll	53,248	31-Mar-2015	06:26	Public\Servers\Oak\Target\X86\Retail
Ftpd.map	56,113	31-Mar-2015	06:26	Public\Servers\Oak\Target\X86\Retail
Ftpd.rel	17,863	31-Mar-2015	06:26	Public\Servers\Oak\Target\X86\Retail
Ftpd.dll	102,400	31-Mar-2015	06:27	Public\Servers\Oak\Target\X86\Debug
Ftpd.map	82,544	31-Mar-2015	06:27	Public\Servers\Oak\Target\X86\Debug
Ftpd.rel	40,077	31-Mar-2015	06:27	Public\Servers\Oak\Target\X86\Debug
Ftpd.dll	73,728	31-Mar-2015	06:27	Public\Servers\Oak\Target\X86\Checked
Ftpd.map	77,373	31-Mar-2015	06:27	Public\Servers\Oak\Target\X86\Checked
Ftpd.rel	33,987	31-Mar-2015	06:27	Public\Servers\Oak\Target\X86\Checked
Ftpd.dll	65,536	31-Mar-2015	06:29	Public\Servers\Oak\Target\Armv5\Retail
Ftpd.map	60,265	31-Mar-2015	06:29	Public\Servers\Oak\Target\Armv5\Retail
Ftpd.rel	18,269	31-Mar-2015	06:29	Public\Servers\Oak\Target\Armv5\Retail
Ftpd.dll	139,264	31-Mar-2015	06:27	Public\Servers\Oak\Target\Armv5\Debug
Ftpd.map	88,345	31-Mar-2015	06:27	Public\Servers\Oak\Target\Armv5\Debug
Ftpd.rel	35,495	31-Mar-2015	06:27	Public\Servers\Oak\Target\Armv5\Debug
Ftpd.dll	90,112	31-Mar-2015	06:29	Public\Servers\Oak\Target\Armv5\Checked
Ftpd.map	81,257	31-Mar-2015	06:29	Public\Servers\Oak\Target\Armv5\Checked
Ftpd.rel	32,015	31-Mar-2015	06:29	Public\Servers\Oak\Target\Armv5\Checked
Ftpd.dll	65,536	31-Mar-2015	06:31	Public\Servers\Oak\Target\Armv6\Retail
Ftpd.map	60,265	31-Mar-2015	06:31	Public\Servers\Oak\Target\Armv6\Retail
Ftpd.rel	18,269	31-Mar-2015	06:31	Public\Servers\Oak\Target\Armv6\Retail
Ftpd.dll	139,264	31-Mar-2015	06:27	Public\Servers\Oak\Target\Armv6\Debug
Ftpd.map	88,334	31-Mar-2015	06:27	Public\Servers\Oak\Target\Armv6\Debug
Ftpd.rel	35,495	31-Mar-2015	06:27	Public\Servers\Oak\Target\Armv6\Debug
Ftpd.dll	90,112	31-Mar-2015	06:29	Public\Servers\Oak\Target\Armv6\Checked
Ftpd.map	81,243	31-Mar-2015	06:29	Public\Servers\Oak\Target\Armv6\Checked
Ftpd.rel	32,015	31-Mar-2015	06:29	Public\Servers\Oak\Target\Armv6\Checked
Ftpd.dll	65,536	31-Mar-2015	06:30	Public\Servers\Oak\Target\Armv7\Retail
Ftpd.map	60,181	31-Mar-2015	06:30	Public\Servers\Oak\Target\Armv7\Retail
Ftpd.rel	18,240	31-Mar-2015	06:30	Public\Servers\Oak\Target\Armv7\Retail
Ftpd.dll	135,168	31-Mar-2015	06:27	Public\Servers\Oak\Target\Armv7\Debug
Ftpd.map	88,332	31-Mar-2015	06:27	Public\Servers\Oak\Target\Armv7\Debug
Ftpd.rel	35,495	31-Mar-2015	06:27	Public\Servers\Oak\Target\Armv7\Debug
Ftpd.dll	90,112	31-Mar-2015	06:29	Public\Servers\Oak\Target\Armv7\Checked
Ftpd.map	81,244	31-Mar-2015	06:29	Public\Servers\Oak\Target\Armv7\Checked
Ftpd.rel	32,015	31-Mar-2015	06:29	Public\Servers\Oak\Target\Armv7\Checked
Ftpd.dll	73,728	31-Mar-2015	06:30	Public\Servers\Oak\Target\Mipsii\Retail
Ftpd.map	55,996	31-Mar-2015	06:30	Public\Servers\Oak\Target\Mipsii\Retail
Ftpd.rel	61,450	31-Mar-2015	06:30	Public\Servers\Oak\Target\Mipsii\Retail
Ftpd.dll	155,648	31-Mar-2015	06:27	Public\Servers\Oak\Target\Mipsii\Debug
Ftpd.map	83,597	31-Mar-2015	06:27	Public\Servers\Oak\Target\Mipsii\Debug
Ftpd.rel	147,029	31-Mar-2015	06:27	Public\Servers\Oak\Target\Mipsii\Debug
Ftpd.dll	114,688	31-Mar-2015	06:28	Public\Servers\Oak\Target\Mipsii\Checked
Ftpd.map	76,536	31-Mar-2015	06:28	Public\Servers\Oak\Target\Mipsii\Checked
Ftpd.rel	114,085	31-Mar-2015	06:28	Public\Servers\Oak\Target\Mipsii\Checked
Ftpd.dll	73,728	31-Mar-2015	06:28	Public\Servers\Oak\Target\Mipsii_fp\Retail
Ftpd.map	55,996	31-Mar-2015	06:28	Public\Servers\Oak\Target\Mipsii_fp\Retail
Ftpd.rel	61,450	31-Mar-2015	06:28	Public\Servers\Oak\Target\Mipsii_fp\Retail
Ftpd.dll	155,648	31-Mar-2015	06:27	Public\Servers\Oak\Target\Mipsii_fp\Debug
Ftpd.map	83,430	31-Mar-2015	06:27	Public\Servers\Oak\Target\Mipsii_fp\Debug
Ftpd.rel	146,942	31-Mar-2015	06:27	Public\Servers\Oak\Target\Mipsii_fp\Debug
Ftpd.dll	114,688	31-Mar-2015	06:29	Public\Servers\Oak\Target\Mipsii_fp\Checked
Ftpd.map	76,370	31-Mar-2015	06:29	Public\Servers\Oak\Target\Mipsii_fp\Checked
Ftpd.rel	113,998	31-Mar-2015	06:29	Public\Servers\Oak\Target\Mipsii_fp\Checked
Ftpd.dll	61,440	31-Mar-2015	06:28	Public\Servers\Oak\Target\Sh4\Retail
Ftpd.map	59,879	31-Mar-2015	06:28	Public\Servers\Oak\Target\Sh4\Retail
Ftpd.rel	33,755	31-Mar-2015	06:28	Public\Servers\Oak\Target\Sh4\Retail
Ftpd.dll	114,688	31-Mar-2015	06:33	Public\Servers\Oak\Target\Sh4\Debug
Ftpd.map	88,364	31-Mar-2015	06:33	Public\Servers\Oak\Target\Sh4\Debug
Ftpd.rel	66,467	31-Mar-2015	06:33	Public\Servers\Oak\Target\Sh4\Debug
Ftpd.dll	86,016	31-Mar-2015	06:28	Public\Servers\Oak\Target\Sh4\Checked
Ftpd.map	80,657	31-Mar-2015	06:28	Public\Servers\Oak\Target\Sh4\Checked
Ftpd.rel	58,057	31-Mar-2015	06:28	Public\Servers\Oak\Target\Sh4\Checked
Nkmain.lib	2,001,368	31-Mar-2015	06:09	Public\Common\Oak\Lib\X86\Retail
Nkprmain.lib	2,043,914	31-Mar-2015	06:09	Public\Common\Oak\Lib\X86\Retail
Nkmain.lib	3,192,798	31-Mar-2015	06:09	Public\Common\Oak\Lib\X86\Debug
Nkprmain.lib	3,240,284	31-Mar-2015	06:09	Public\Common\Oak\Lib\X86\Debug
Nkmain.lib	3,052,236	31-Mar-2015	06:09	Public\Common\Oak\Lib\X86\Checked
Nkprmain.lib	3,094,484	31-Mar-2015	06:09	Public\Common\Oak\Lib\X86\Checked
Nkmain.lib	2,404,724	31-Mar-2015	06:10	Public\Common\Oak\Lib\Armv5\Retail
Nkprmain.lib	2,462,924	31-Mar-2015	06:10	Public\Common\Oak\Lib\Armv5\Retail
Nkmain.lib	3,917,094	31-Mar-2015	06:09	Public\Common\Oak\Lib\Armv5\Debug
Nkprmain.lib	3,987,626	31-Mar-2015	06:09	Public\Common\Oak\Lib\Armv5\Debug
Nkmain.lib	3,526,830	31-Mar-2015	06:10	Public\Common\Oak\Lib\Armv5\Checked
Nkprmain.lib	3,584,066	31-Mar-2015	06:10	Public\Common\Oak\Lib\Armv5\Checked
Nkmain.lib	2,404,770	31-Mar-2015	06:10	Public\Common\Oak\Lib\Armv6\Retail
Nkprmain.lib	2,462,970	31-Mar-2015	06:10	Public\Common\Oak\Lib\Armv6\Retail
Nkmain.lib	3,916,444	31-Mar-2015	06:09	Public\Common\Oak\Lib\Armv6\Debug
Nkprmain.lib	3,986,980	31-Mar-2015	06:09	Public\Common\Oak\Lib\Armv6\Debug
Nkmain.lib	3,526,850	31-Mar-2015	06:10	Public\Common\Oak\Lib\Armv6\Checked
Nkprmain.lib	3,584,086	31-Mar-2015	06:10	Public\Common\Oak\Lib\Armv6\Checked
Nkmain.lib	2,398,254	31-Mar-2015	06:10	Public\Common\Oak\Lib\Armv7\Retail
Nkprmain.lib	2,456,446	31-Mar-2015	06:10	Public\Common\Oak\Lib\Armv7\Retail
Nkmain.lib	3,906,106	31-Mar-2015	06:09	Public\Common\Oak\Lib\Armv7\Debug
Nkprmain.lib	3,975,804	31-Mar-2015	06:09	Public\Common\Oak\Lib\Armv7\Debug
Nkmain.lib	3,516,420	31-Mar-2015	06:10	Public\Common\Oak\Lib\Armv7\Checked
Nkprmain.lib	3,573,436	31-Mar-2015	06:10	Public\Common\Oak\Lib\Armv7\Checked
Nkmain.lib	2,168,630	31-Mar-2015	06:10	Public\Common\Oak\Lib\Mipsii\Retail
Nkprmain.lib	2,215,510	31-Mar-2015	06:10	Public\Common\Oak\Lib\Mipsii\Retail
Nkmain.lib	3,661,698	31-Mar-2015	06:09	Public\Common\Oak\Lib\Mipsii\Debug
Nkprmain.lib	3,730,332	31-Mar-2015	06:09	Public\Common\Oak\Lib\Mipsii\Debug
Nkmain.lib	3,228,546	31-Mar-2015	06:09	Public\Common\Oak\Lib\Mipsii\Checked
Nkprmain.lib	3,274,654	31-Mar-2015	06:09	Public\Common\Oak\Lib\Mipsii\Checked
Nkmain.lib	2,228,774	31-Mar-2015	06:09	Public\Common\Oak\Lib\Mipsii_fp\Retail
Nkprmain.lib	2,275,880	31-Mar-2015	06:09	Public\Common\Oak\Lib\Mipsii_fp\Retail
Nkmain.lib	3,737,770	31-Mar-2015	06:09	Public\Common\Oak\Lib\Mipsii_fp\Debug
Nkprmain.lib	3,806,742	31-Mar-2015	06:09	Public\Common\Oak\Lib\Mipsii_fp\Debug
Nkmain.lib	3,286,236	31-Mar-2015	06:10	Public\Common\Oak\Lib\Mipsii_fp\Checked
Nkprmain.lib	3,332,348	31-Mar-2015	06:10	Public\Common\Oak\Lib\Mipsii_fp\Checked
Nkmain.lib	2,038,442	31-Mar-2015	06:09	Public\Common\Oak\Lib\Sh4\Retail
Nkprmain.lib	2,080,238	31-Mar-2015	06:09	Public\Common\Oak\Lib\Sh4\Retail
Nkmain.lib	3,279,524	31-Mar-2015	06:10	Public\Common\Oak\Lib\Sh4\Debug
Nkprmain.lib	3,329,188	31-Mar-2015	06:10	Public\Common\Oak\Lib\Sh4\Debug
Nkmain.lib	2,972,946	31-Mar-2015	06:09	Public\Common\Oak\Lib\Sh4\Checked
Nkprmain.lib	3,010,460	31-Mar-2015	06:09	Public\Common\Oak\Lib\Sh4\Checked