Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2015.2347 Microsoft Security Bulletin MS15-097 - Critical - Vulnerabilities in Microsoft Graphics Component Could Allow Remote Code Execution Critical 9 September 2015 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Microsoft Windows Microsoft Office Microsoft Lync Publisher: Microsoft Operating System: Windows Impact/Access: Administrator Compromise -- Existing Account Denial of Service -- Remote with User Interaction Unauthorised Access -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2015-2546 CVE-2015-2529 CVE-2015-2527 CVE-2015-2518 CVE-2015-2517 CVE-2015-2512 CVE-2015-2511 CVE-2015-2510 CVE-2015-2508 CVE-2015-2507 CVE-2015-2506 Original Bulletin: https://technet.microsoft.com/en-us/library/security/MS15-097 Comment: CVE-2015-2546 is being actively exploited in the wild according to Microsoft. - --------------------------BEGIN INCLUDED TEXT-------------------- Microsoft Security Bulletin MS15-097: Vulnerabilities in Microsoft Graphics Component Could Allow Remote Code Execution Critical (3089656) Bulletin Number: MS15-097 Bulletin Title: Vulnerabilities in Microsoft Graphics Component Could Allow Remote Code Execution Severity: Critical KB Article: 3089656 Version: 1.0 Published Date: September 8, 2015 Executive Summary This security update resolves vulnerabilities in Microsoft Windows, Microsoft Office, and Microsoft Lync. The most 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 OpenType fonts. This security update is rated Critical for: All supported editions of Windows Vista, Windows Server 2008 All affected editions of Microsoft Lync 2013, Microsoft Lync 2010, Microsoft Live Meeting 2007 All affected editions of Microsoft Office 2007, Microsoft Office 2010 This security update is rated Important for all supported releases of Microsoft Windows with the exception of Windows Vista and Windows Server 2008. For more information, see the Affected Software section. Affected Software Microsoft Windows Windows Vista Service Pack 2 Windows Vista x64 Edition Service Pack 2 Windows Server 2008 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[1] Windows RT 8.1[1] Windows 10 for 32-bit Systems[2] Windows 10 for x64-based Systems[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 2012 (Server Core installation) Windows Server 2012 R2 (Server Core installation) [1]This update is available via Windows Update only. [2]The Windows 10 update is cumulative. In addition to containing non-security updates, it also contains all of the security fixes for all of the Windows 10-affected vulnerabilities shipping with this months security release. See Microsoft Knowledge Base Article 3081455 for more information and download links. 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 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) 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 Live Meeting 2007 Console[1] [1]This update is available from the Microsoft Download Center only. Vulnerability Information OpenType Font Parsing Vulnerability - CVE-2015-2506 A denial of service vulnerability exists in Microsoft Windows when the Windows Adobe Type Manager Library improperly handles specially crafted OpenType fonts. An attacker who successfully exploited the vulnerability could crash the affected system. There are multiple ways an attacker could exploit the vulnerabilities, such as by convincing a user to open a specially crafted document, or by convincing a user to visit an untrusted webpage that contains embedded OpenType fonts. The update addresses the vulnerabilities by correcting how the Windows Adobe Type Manager 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. Multiple Font Driver Elevation of Privilege Vulnerabilities Elevation of privilege vulnerabilities exist in Microsoft Windows when the Windows Adobe Type Manager Library fails to properly handle objects in memory. An attacker who successfully exploited the vulnerabilities could execute arbitrary code and take control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. To exploit these vulnerabilities, an attacker would first have to log on to a target system and then run a specially crafted application. The security update addresses the vulnerabilities by correcting how ATMFD handles objects in memory. The following tables contain links to the standard entry for each vulnerability in the Common Vulnerabilities and Exposures list: Vulnerability title CVE number Publicly disclosed Exploited Font Driver Elevation of CVE-2015-2507 No No Privilege Vulnerability Font Driver Elevation of CVE-2015-2508 No No Privilege Vulnerability Font Driver Elevation of CVE-2015-2512 No No Privilege Vulnerability Graphics Component Buffer Overflow Vulnerability - CVE-2015-2510 A remote code execution vulnerability exists in Microsoft Windows when components of Windows, Office, and Lync improperly handle specially crafted OpenType fonts. An attacker who successfully exploited this vulnerability could take 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 the vulnerability, such as by convincing a user to open a specially crafted document, or by convincing a user to visit an untrusted webpage that contains embedded OpenType fonts. The update addresses the vulnerability by correcting how the Windows Adobe Type Manager 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. Multiple Win32k Memory Corruption Elevation of Privilege Vulnerabilities Multiple elevation of privilege vulnerabilities exist in Windows when the Windows kernel-mode driver fails to properly handle objects in memory. An attacker who successfully exploited the vulnerabilities could run arbitrary code in kernel mode. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. To exploit these vulnerabilities, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerabilities and take control of an affected system. The update addresses the vulnerabilities by correcting how the Windows kernel-mode driver handles objects in memory. The following tables contain links to the standard entry for each vulnerability in the Common Vulnerabilities and Exposures list: Vulnerability title CVE number Publicly disclosed Exploited Win32k Memory Corruption Elevation CVE-2015-2511 No No of Privilege Vulnerability Win32k Memory Corruption Elevation CVE-2015-2517 No No of Privilege Vulnerability Win32k Memory Corruption Elevation CVE-2015-2518 No No of Privilege Vulnerability Win32k Memory Corruption Elevation CVE-2015-2546 Yes Yes of Privilege Vulnerability Win32k Elevation of Privilege Vulnerability - CVE-2015-2527 An elevation of privilege vulnerability exists when the Windows kernel mode driver (Win32k.sys) fails to properly validate and enforce integrity levels during certain process initialization scenarios. An attacker who successfully exploited the vulnerability could run arbitrary code in kernel mode. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and take control of an affected system. The update addresses the vulnerability by correcting how Windows validates integrity levels to prevent inappropriate process initialization. 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. Kernel ASLR Bypass Vulnerability - CVE-2015-2529 A security feature bypass vulnerability exists when the Windows kernel fails to properly initialize a memory address, allowing an attacker to retrieve information that could lead to a Kernel Address Space Layout Randomization (KASLR) bypass. This issue affects all supported Windows operating systems and is considered to be an Important-class Security Feature Bypass (SFB). An attacker who successfully exploited this vulnerability could retrieve the base address of the kernel driver from a compromised process. To exploit this vulnerability, an attacker would have to log on to an affected system and run a specially crafted application. The security update addresses the vulnerability by correcting how the Windows kernel handles memory addresses. Microsoft received information about this vulnerability through coordinated vulnerability disclosure. This vulnerability has been publicly disclosed. When this security bulletin was issued, Microsoft had not received any information to indicate that this vulnerability had been publicly used to attack customers. - --------------------------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 iQIVAwUBVe9VeH6ZAP0PgtI9AQLgWxAAykSFIR5PL8raAMHoXSiH71h39TSeNRB2 VgaxoSMVTz2yUc9umOOWfTJbTuvsYBNcQq8JUY88qoq7CSrdXicQumNUVMEIkgJd n3OAwWdby0tvRgrVdjY1SxC7YeRsl2WziH0BcHiRyOJq8NpLcSHJ6csWiI/HWizu VpUFUdZv6TaBhlzd0F9jKgjXcHBk0KPxu3972HRv2Phqv8Uns7eP7Qw9nBkdQKAv 0Jc4wEocwHnZf8hfFGuNwOdDmpn/MpwNvnA8QBD++//02xyYUvYra7P5SwzPU27f s79GxqmNCGtqbmK5adfUYD5HdnQ1+b8EiBAIII7QOh6XPuvU7CpPsQB6A9/4wkJH EfGNDdZMBSLI7udBlDECrgYLWIC7GdqrvkEo80mli4Jxai83Y3+WNxK9DWN4jWpn rcqApa1RNdloTXdPMnbZjAP2Pal8stYx79yJJFzvsapixFZWa4fF/yxW/SzHITp/ K6eYx9sU/TfTKJP6Is/Zv50bpeOWKwSL0Gvy3SeJSO6a0jrtOtiOFZWZuXggwhI8 nGCf3ZmsWnkECeVXz9ccMRPTzooLfNUqDVmmN+6JXoKo9XueJEouGaBBccud7glH Y0QRhORsAexe30jX3bTI/PdmLSQTYKoHzx40la9liQIijrZmQMVfHKCYdAhHO/Ww n6c/DzX0ah4= =dfr1 -----END PGP SIGNATURE-----