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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2011.1247 Cumulative Security Update for Internet Explorer 14 December 2011 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Microsoft Internet Explorer Publisher: Microsoft Operating System: Windows 7 Windows Server 2003 Windows Server 2008 Windows Server 2008 R2 Windows Vista Windows XP Impact/Access: Execute Arbitrary Code/Commands -- Existing Account Access Confidential Data -- Remote with User Interaction Increased Privileges -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2011-3404 CVE-2011-2019 CVE-2011-1992 Original Bulletin: http://technet.microsoft.com/en-us/security/bulletin/ms11-099 - --------------------------BEGIN INCLUDED TEXT-------------------- Microsoft Security Bulletin MS11-099 - Important Cumulative Security Update for Internet Explorer (2618444) Published Date: December 13, 2011 Version: 1.0 General Information Executive Summary This security update resolves three privately reported vulnerabilities in Internet Explorer. The most severe vulnerability could allow remote code execution if a user opens a legitimate HyperText Markup Language (HTML) file that is located in the same directory as a specially crafted dynamic link library (DLL) file. This security update is rated Important for Internet Explorer 7, Internet Explorer 8, and Internet Explorer 9 on Windows clients and for Internet Explorer 9 for Windows Server 2008 R2. This security update is also rated Moderate for Internet Explorer 6 on all supported editions of Windows XP. This security update is also rated Low for Internet Explorer on Windows servers (except Windows Server 2008 R2). Affected Software Internet Explorer 6 Internet Explorer 7 Internet Explorer 8 Internet Explorer 9 Vulnerability Information XSS Filter Information Disclosure Vulnerability - CVE-2011-1992 An information disclosure vulnerability exists in Internet Explorer. An attacker could exploit the vulnerability by constructing a specially crafted Web page that contains malicious JavaScript code. An attacker who successfully exploited this vulnerability could view content from another domain or Internet Explorer zone. Internet Explorer Insecure Library Loading Vulnerability - CVE-2011-2019 A remote code execution vulnerability exists in the way that Internet Explorer handles the loading of DLL files. An attacker who successfully exploited this vulnerability could gain the same user rights as the logged-on user. If a user is logged on with administrative user rights, an attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Content-Disposition Information Disclosure Vulnerability - CVE-2011-3404 An information disclosure vulnerability exists in Internet Explorer that could allow an attacker to force the browser to perform unexpected actions when a user downloads Web content, allowing an attacker to view content from a different domain or Internet Explorer zone other than the domain or zone of the attacker's Web page. - --------------------------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 iQIVAwUBTuf/k+4yVqjM2NGpAQLYKg/9ErfOPW7/3n2P3tBpswQKB7wsi+2UlIdJ zLgLc0Bm9koO01D13zryDX/aY1Maj0i5llDTbgXAbquPZ/HscM/RKcyWdkfxnfzC gmTTh1Ni1TWnRVzSW+aJXCFSdEiVqCZQH0DcVM/FGwPkfqbQ4m51HF+puU+K5Ka4 Vv4WTkcYziUrFsB45lmWVVgfZEmGXLDp4XjZMzXA0OfgH2h6LVeLVlX/W647BJhF dlaun2tEy+ILy+O0b95bj41JP5DrOOn+lxjZ9Wnj0J98yImU7e3uujk+aR8JOiKg OAwGg+PTU4E7xm4cUZ4AyurKbUNr29TqlxuY7sgB3HkiMOGFx0iIbEb/qor9IsqY 6rUcoGiXxI4Ii0BMyFYT73mJ3iAilcDUxchhPn9FbaBaUKmMElBq8VCcppNxjIS8 n2hhQPoUN2SKJeMMXRnGJNnuMRuXaY93ogqjr4NToEJJgawCaaxoLYRbUhenccq7 l3/07iI+8x6AjaSgGSaVCwP4Rwg+gKbMPRHr4Gy+UY4QIKPAoP17MmOgARMggsC8 Ovqjqr+Q06cMkd9A7yvxBBLrKXuTAhwC0b/vx7JFx2agVy1fNz7QZt5k/p53Vdii lpI36a1KoQgpcKFlx1ZRh+erZjCa4CI+Ixy9MHww0Ghk8UjLSRODeF0H5L9VoK58 c3b5vh8OH44= =X/2v -----END PGP SIGNATURE-----