Symptoms

Consider the following scenario:

  • You have a computer that is running Windows 8.1, Windows RT 8.1, or Windows Server 2012 R2.

  • You type more than one line of text in a text control that has the Word Wrap property enabled in an application.

  • You move the cursor to the beginning of the first line, and then you type a character.

In this scenario, the application crashes.

Cause

This issue occurs because of a buffer underflow when the application tries to find the correct position of the cursor.

Resolution

To resolve this issue, we have released a hotfix for Windows 8.1, Windows Server 2012 R2, and we have released an update rollup for Windows 8.1, Windows Server 2012 R2.

The update rollup fixes many other issues in addition to the issue that the hotfix fixes. We recommend that you use the update rollup. The update rollup is larger than the hotfix. Therefore, the update rollup takes longer to download.


Get the update rollup for Windows 8.1 or Windows Server 2012 R2To resolve this issue, install the November 2014 update rollup for Windows RT 8.1, Windows 8.1, or Windows Server 2012 R2.

Get the hotfix for Windows 8.1 or Windows Server 2012 R2 A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem.

If the hotfix is available for download, there is a "Hotfix Download Available" section at the top of this Knowledge Base article. If this section does not appear, submit a request to Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft website:

http://support.microsoft.com/contactus/?ws=supportNote The "Hotfix Download Available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

PrerequisitesTo apply this hotfix, you must have update 2919355 installed in Windows 8.1 or Windows Server 2012 R2.

Registry informationTo use the hotfix in this package, you do not have to make any changes to the registry.

Restart requirementYou may have to restart the computer after you apply this hotfix.

Hotfix replacement informationThis hotfix does not replace a previously released hotfix.

Status

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

More Information

The global version of this hotfix installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.

Windows 8.1 and Windows Server 2012 R2 file information and notes

Important Windows 8.1 hotfixes and Windows Server 2012 R2 hotfixes are included in the same packages. However, hotfixes on the Hotfix Request page are listed under both operating systems. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 8.1/Windows Server 2012 R2" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.

  • The files that apply to a specific product, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:

    Version

    Product

    Milestone

    Service branch

    6.3.960 0.17xxx

    Windows 8.1 and Windows Server 2012 R2

    RTM

    GDR

  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information" section. MUM, MANIFEST, and the associated security catalog (.cat) files, are very important to maintain the state of the updated components. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.

For all supported x86-based versions of Windows 8.1

File name

File version

File size

Date

Time

Platform

User32.dll

6.3.9600.17383

1,402,224

25-Sep-2014

02:45

x86

For all supported x64-based versions of Windows 8.1 and of Windows Server 2012 R2

File name

File version

File size

Date

Time

Platform

User32.dll

6.3.9600.17383

1,541,208

25-Sep-2014

03:41

x64

User32.dll

6.3.9600.17383

1,375,744

25-Sep-2014

01:00

x86

For all supported ARM-based versions of Windows 8.1

File name

File version

File size

Date

Time

Platform

User32.dll

6.3.9600.17383

1,305,168

25-Sep-2014

02:22

Not applicable

Additional file information

Additional file information for Windows 8.1 and for Windows Server 2012 R2

Additional files for all supported x86-based versions of Windows 8.1

File property

Value

File name

Update.mum

File version

Not applicable

File size

1,804

Date (UTC)

26-Sep-2014

Time (UTC)

01:25

Platform

Not applicable

File name

X86_d5399d39387b773ba88312f2905e56cd_31bf3856ad364e35_6.3.9600.17383_none_61e022d69d8afc3a.manifest

File version

Not applicable

File size

694

Date (UTC)

26-Sep-2014

Time (UTC)

01:25

Platform

Not applicable

File name

X86_microsoft-windows-user32_31bf3856ad364e35_6.3.9600.17383_none_61d719b688f714ba.manifest

File version

Not applicable

File size

8,087

Date (UTC)

25-Sep-2014

Time (UTC)

02:52

Platform

Not applicable

Additional files for all supported x64-based versions of Windows 8.1 and of Windows Server 2012 R2

File property

Value

File name

Amd64_7397586ce420b9ee3378b30e091b5d9b_31bf3856ad364e35_6.3.9600.17383_none_f65a7dfe700d429c.manifest

File version

Not applicable

File size

698

Date (UTC)

26-Sep-2014

Time (UTC)

01:28

Platform

Not applicable

File name

Amd64_78946767a42dc1fa73b1246d2d4d1f7f_31bf3856ad364e35_6.3.9600.17383_none_72c7c338b9296372.manifest

File version

Not applicable

File size

698

Date (UTC)

26-Sep-2014

Time (UTC)

01:28

Platform

Not applicable

File name

Amd64_microsoft-windows-user32_31bf3856ad364e35_6.3.9600.17383_none_bdf5b53a415485f0.manifest

File version

Not applicable

File size

8,091

Date (UTC)

25-Sep-2014

Time (UTC)

03:46

Platform

Not applicable

File name

Update.mum

File version

Not applicable

File size

2,935

Date (UTC)

26-Sep-2014

Time (UTC)

01:28

Platform

Not applicable

File name

Wow64_microsoft-windows-user32_31bf3856ad364e35_6.3.9600.17383_none_c84a5f8c75b547eb.manifest

File version

Not applicable

File size

3,869

Date (UTC)

25-Sep-2014

Time (UTC)

02:51

Platform

Not applicable

Additional files for all supported ARM-based versions of Windows 8.1

File property

Value

File name

Arm_533448ad6196f7f4335eaac392b8a669_31bf3856ad364e35_6.3.9600.17383_none_efe74ece0618bb51.manifest

File version

Not applicable

File size

694

Date (UTC)

26-Sep-2014

Time (UTC)

01:26

Platform

Not applicable

File name

Arm_microsoft-windows-user32_31bf3856ad364e35_6.3.9600.17383_none_61d98c0e88f43380.manifest

File version

Not applicable

File size

8,087

Date (UTC)

25-Sep-2014

Time (UTC)

02:28

Platform

Not applicable

File name

Update.mum

File version

Not applicable

File size

1,804

Date (UTC)

26-Sep-2014

Time (UTC)

01:26

Platform

Not applicable

References

See the terminology that Microsoft uses to describe software updates.

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