MS16-012: Description of the security update for Windows PDF Library: February 9, 2016

Summary
This security update resolves vulnerabilities in Microsoft Windows. The more severe of the vulnerabilities could allow remote code execution if Microsoft Windows PDF Library incorrectly handles application programming interface (API) calls. This could allow an attacker to run arbitrary code on the user’s system. An attacker who successfully exploited the vulnerabilities could gain the same user rights as the current user. Customers whose accounts are configured to have fewer user rights on the system could be less affected than those who operate with administrative user rights. However, an attacker would be unable to force users to download or open a malicious PDF document.

To learn more about the vulnerability, see Microsoft Security Bulletin MS16-012.
More information
Important
  • All future security and nonsecurity updates for Windows 8.1, and Windows Server 2012 R2 require update 2919355 to be installed. We recommend that you install update 2919355 on your Windows 8.1-based, or Windows Server 2012 R2-based computer so that you receive future updates.
  • If you install a language pack after you install this update, you must reinstall this update. Therefore, we recommend that you install any language packs that you need before you install this update. For more information, see Add language packs to Windows.
How to obtain and install the update

Method 1: Windows Update

This update is available through Windows Update. When you turn on automatic updating, this update will be downloaded and installed automatically. For more information about how to turn on automatic updating, see Get security updates automatically.

Method 2: Microsoft Download Center

You can obtain the stand-alone update package through the Microsoft Download Center. Follow the installation instructions on the download page to install the update.

Click the download link in Microsoft Security Bulletin MS16-012 that corresponds to the version of Windows that you are running.
More information

How to obtain help and support for this security update

Help for installing updates: Support for Microsoft Update

Security solutions for IT professionals: TechNet Security Troubleshooting and Support

Help for protecting your Windows-based computer from viruses and malware: Virus Solution and Security Center

Local support according to your country: International Support
File Information

File hash information

File nameSHA1 hashSHA256 hash
Windows8.1-KB3123294-x86.msu32B42A3872777DC5671DD1595095455C0AF8AF2698DF8856376FF5A7DAC0E86D64D3C5F4C05EE84FED4556DE82BCF4A4D7E85B4D
Windows8-RT-KB3123294-x86.msuF763AD94352CD13D3DD9366EF7D3D37D55791826BF0B536654F7A726DEE7AE3E0B4E25DF8F680F361AEFD6AD627643D9707A66F5
Windows8.1-KB3123294-x64.msuB05CBF7C42C425EA6458D75D34EE280C71351486C3328940F56444EDFFB21E41679ACE9A4B7384DF4FBFAFC2DC16EB0E729B6C44
Windows8-RT-KB3123294-x64.msu0333D77FA3791947065E6C6781D31901ED05EE02391BB8F202D3C7D80F014312D561ECBE9886DCA33254EC93111B33B01FBFF9EA

File information

The English (United States) version of this software update installs files that have the attributes that are listed in the following tables.

Windows 8.1 and Windows Server 2012 R2 file information

Notes
  • 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:
    VersionProductMilestoneService branch
    6.3.960 0.17 xxxWindows RT 8.1, Windows 8.1, and Windows Server 2012 R2RTMGDR
  • GDR service branches contain only those fixes that are widely released to address widespread, critical issues. LDR service branches contain hotfixes in addition to widely released fixes.
  • The MANIFEST files (.manifest) and MUM files (.mum) that are installed are not listed.
For all supported x86-based versions
File nameFile versionFile sizeDateTimePlatform
Windows.data.pdf.dll6.3.9600.181845,264,38429-Dec-201515:42x86
Glcndfilter.dll6.3.9600.181845,267,96829-Dec-201515:43x86
For all supported x64-based versions
File nameFile versionFile sizeDateTimePlatform
Windows.data.pdf.dll6.3.9600.181847,783,93629-Dec-201515:45x64
Glcndfilter.dll6.3.9600.181847,075,32829-Dec-201515:45x64
Windows.data.pdf.dll6.3.9600.181845,264,38429-Dec-201515:42x86
Glcndfilter.dll6.3.9600.181845,267,96829-Dec-201515:43x86

Windows Server 2012 file information

Notes
  • 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
    6.2.920 0.17xxxWindows Server 2012RTMGDR
    6.2.920 0.21xxxWindows Server 2012RTMLDR
  • GDR service branches contain only those fixes that are widely released to address widespread, critical issues. LDR service branches contain hotfixes in addition to widely released fixes.
  • The MANIFEST files (.manifest) and MUM files (.mum) that are installed are not listed.
For all supported x64-based versions
File nameFile versionFile sizeDateTimePlatform
Glcndfilter.dll6.2.9200.1764211,459,58429-Jan-201601:00x64
Glcndfilter.dll6.2.9200.2176111,461,12028-Jan-201621:51x64
Glcndfilter.dll6.2.9200.176428,552,44828-Jan-201621:48x86
Glcndfilter.dll6.2.9200.217618,552,44828-Jan-201621:51x86
malicious attacker exploit
Properties

Article ID: 3123294 - Last Review: 02/09/2016 18:18:00 - Revision: 1.0

Windows Server 2012 R2 Datacenter, Windows Server 2012 R2 Standard, Windows Server 2012 R2 Essentials, Windows Server 2012 R2 Foundation, Windows 8.1 Enterprise, Windows 8.1 Pro, Windows 8.1, Windows Server 2012 Datacenter, Windows Server 2012 Standard, Windows Server 2012 Essentials, Windows Server 2012 Foundation

  • atdownload kbbug kbexpertiseinter kbfix kbsecbulletin kbsecurity kbsecvulnerability KB3123294
Feedback