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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2015.1279 MS15-044: Vulnerabilities in GDI+ Could Allow Remote Code Execution (3057110) 13 May 2015 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Microsoft Windows Microsoft Office Microsoft Live Meeting Microsoft Lync Microsoft Silverlight Microsoft .NET Framework Publisher: Microsoft Operating System: Windows OS X Impact/Access: Access Confidential Data -- Remote with User Interaction Administrator Compromise -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2015-1671 CVE-2015-1670 Original Bulletin: https://technet.microsoft.com/en-us/library/security/MS15-044 - --------------------------BEGIN INCLUDED TEXT-------------------- MS15-044: Vulnerabilities in GDI+ Could Allow Remote Code Execution (3057110) Bulletin Number: MS15-044 Bulletin Title: Vulnerabilities in GDI+ Could Allow Remote Code Execution Severity: Critical KB Article: 3057110 Version: 1.0 Published Date: May 12, 2015 Executive Summary This security update resolves vulnerabilities in Microsoft Windows, Microsoft .NET Framework, Microsoft Office, Microsoft Lync, and Microsoft Silverlight. The more severe of the vulnerabilities could allow remote code execution if a user opens a specially crafted document or visits an untrusted webpage that contains embedded TrueType fonts. This security update is rated Critical for supported releases of Microsoft Windows and all affected editions of Microsoft .NET Framework, Microsoft Office, Microsoft Lync, and Microsoft Silverlight. For more information, see the Affected Software section. Affected Software Microsoft Windows Windows Server 2003 Service Pack 2 Windows Server 2003 x64 Edition Service Pack 2 Windows Server 2003 with SP2 for Itanium-based Systems Windows Vista Service Pack 2 Windows Vista x64 Edition Service Pack 2 Windows Server 2008 for 32-bit Systems Service Pack 2 Windows Server 2008 for x64-based Systems Service Pack 2 Windows Server 2008 for Itanium-based Systems Service Pack 2 Windows 7 for 32-bit Systems Service Pack 1 Windows 7 for x64-based Systems Service Pack 1 Windows Server 2008 R2 for x64-based Systems Service Pack 1 Windows Server 2008 R2 for Itanium-based Systems Service Pack 1 Windows 8 for 32-bit Systems Windows 8 for x64-based Systems Windows 8.1 for 32-bit Systems Windows 8.1 for x64-based Systems Windows Server 2012 Windows Server 2012 R2 Windows RT[2] Windows RT 8.1[2] Server Core installation option Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) Windows Server 2012 (Server Core installation) Windows Server 2012 (Server Core installation) Windows Server 2012 R2 (Server Core installation) Windows Server 2012 R2 (Server Core installation) [1].NET Framework 4 and .NET Framework 4 Client Profile affected. [2]This update is available via Windows Update only. Microsoft Office Microsoft Office 2007 Service Pack 3 Microsoft Office 2010 Service Pack 2 (32-bit editions) Microsoft Office 2010 Service Pack 2 (64-bit editions) Microsoft Communications Platforms and Software Microsoft Live Meeting 2007 Console[1] Microsoft Lync 2010 (32-bit) Microsoft Lync 2010 (64-bit) Microsoft Lync 2010 Attendee[1] (user level install) Microsoft Lync 2010 Attendee (admin level install) Microsoft Lync 2013 Service Pack 1 (32-bit) (Skype for Business) Microsoft Lync Basic 2013 Service Pack 1 (32-bit) (Skype for Business Basic) Microsoft Lync 2013 Service Pack 1 (64-bit) (Skype for Business) Microsoft Lync Basic 2013 Service Pack 1 (64-bit) (Skype for Business Basic) [1]This update is available from the Microsoft Download Center only. Microsoft Developer Tools and Software Microsoft Silverlight 5 when installed on Mac Microsoft Silverlight 5 Developer Runtime when installed on Mac Microsoft Silverlight 5 when installed on all supported releases of Microsoft Windows clients Microsoft Silverlight 5 Developer Runtime when installed on all supported releases of Microsoft Windows clients Microsoft Silverlight 5 when installed on all supported releases of Microsoft Windows servers Microsoft Silverlight 5 Developer Runtime when installed on all supported releases of Microsoft Windows servers Vulnerability Information OpenType Font Parsing Vulnerability - CVE-2015-1670 An information disclosure vulnerability exists in Microsoft Windows when the Windows DirectWrite library improperly handles OpenType fonts. An attacker who successfully exploited this vulnerability could potentially read data which was not intended to be disclosed. Note that this vulnerability would not allow an attacker to execute code or to elevate their user rights directly, but it could be used to obtain information that could be used to try to further compromise the affected system. To exploit the vulnerability an attacker could host a specially crafted website that is designed to exploit the vulnerability and then convince a user to view the website. This could also include compromised websites and websites that accept or host user-provided content or advertisements. In all cases, however, an attacker would have no way to force users to visit such websites. Instead, an attacker would have to convince users to visit a website, typically by way of enticements in Instant Messenger or email messages. The update addresses the vulnerability by correcting how the Windows DirectWrite library handles OpenType fonts. Microsoft received information about the vulnerability through coordinated vulnerability disclosure. When this security bulletin was issued, Microsoft had not received any information to indicate that this vulnerability had been publicly used to attack customers. TrueType Font Parsing Vulnerability - CVE-2015-1671 A remote code execution vulnerability exists when components of Windows, .NET Framework, Office, Lync, and Silverlight fail to properly handle TrueType fonts. An attacker who successfully exploited this vulnerability could take complete control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. There are multiple ways an attacker could exploit this vulnerability, including by convincing a user to open a specially crafted document or convincing them to visit an untrusted webpage that contains embedded TrueType fonts. The update addresses the vulnerability by correcting how the affected software products handle TrueType fonts. Microsoft received information about the vulnerability through coordinated vulnerability disclosure. When this security bulletin was issued, Microsoft was aware of limited attacks that attempt to exploit this vulnerability. - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBVVKCsxLndAQH1ShLAQJ14w//UchIK2zVVWERkF6gOlRNS6jYWcpxeI5D 7eRwEv+mEAINqx4u4jDAHebBu1rQ7X3kwWLTxQ8Kye7FWj3xSVmtn255+KDgZSef wntYkbOtDkbaRPl2YHkpNRDqdAjcAQ0CxXB2AWOBgsfL+49FkK3o/2YVZwTZuZp9 y0/5Gll0neBf5GaJmpo7/e/3dGj4+QIOr1PPBGK8kSj1Inn5KgVofBlrdwxgrSLA d7xdcRFCXT58rn9IVGF33O/qtePjGL8g/YVxXKGhgfqN+FLpYAktPpOfv9ycfVcn u3Q/WiPaseIqkqxSqo1+Hu2fbGd+/Q4xBIV1//5eE2RMLOl5MLgU5hHSwfsVVVtk yuXsGrUKJgc0MybTjhYz33LdGMvTm+SmgHDJ/WscetNJjtbj2LrozNnye2WxvtH9 hJ2NIBm0+3e1T1KEzltXQ5M2Q4ubSR52HPJMR2dcrxiuj08awCOKmf5ZkEJ6Zhwc ZY52f+WmY30TY3NyhJviWE6keRFRIsxD0+iXQgLRVvA57oozGK2tAhLvEhQSe4ir OEpNxecTSXJKVr+IbTx5X9/+7Nxb2ZGqOKUbCR8vao4g4J6xqhNH/XN5qZR5l2zO 3ZK5RFBi36QNI01U/DWZoIdlGK/m7FUJR1E5QuBiO94Kq7PaYNaOxn4XPyc7Bt/+ xUNsWeBo7MU= =q2JN -----END PGP SIGNATURE-----