Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2013.0368 Vulnerability in Silverlight Could Allow Remote Code Execution (2814124) 12 March 2013 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Microsoft Silverlight Publisher: Microsoft Operating System: Windows OS X Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2013-0074 Original Bulletin: http://technet.microsoft.com/en-us/security/bulletin/ms13-022 - --------------------------BEGIN INCLUDED TEXT-------------------- Microsoft Security Bulletin MS13-022 - Critical Vulnerability in Silverlight Could Allow Remote Code Execution (2814124) Published Date: March 12, 2013 Version: 1.0 General Information Executive Summary This security update resolves a privately reported vulnerability in Microsoft Silverlight. The vulnerability could allow remote code execution if an attacker hosts a website that contains a specially crafted Silverlight application that could exploit this vulnerability and then convinces a user to view the website. The attacker could also take advantage of compromised websites and websites that accept or host user-provided content or advertisements. Such websites could contain specially crafted content that could exploit this vulnerability. In all cases, however, an attacker would have no way to force users to visit a website. Instead, an attacker would have to convince users to visit a website, typically by getting them to click a link in an email message or in an Instant Messenger message that takes them to the attacker's website. It could also be possible to display specially crafted web content by using banner advertisements or by using other methods to deliver web content to affected systems. This security update is rated Critical for Microsoft Silverlight 5 and Microsoft Silverlight 5 Developer Runtime when installed on Mac and all supported releases of Microsoft Windows. Affected Software Microsoft Silverlight 5 Microsoft Silverlight 5 Developer Runtime Silverlight Double Dereference Vulnerability - CVE-2013-0074 A remote code execution vulnerability exists in Microsoft Silverlight that can allow a specially crafted Silverlight application to access memory in an unsafe manner. An attacker who successfully exploited this vulnerability could run arbitrary code in the security context of the current user. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights. - --------------------------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 iQIVAwUBUT+/0O4yVqjM2NGpAQLiKw/+NGnokXdIeeCF/qfGo9UkKhKAg6xez1Zv 3YnMDRwG3mYfo20sfruX9uIlZaF3r81iRVCofV7+LCoCrhIeXsxyPn6Mg4IwmO/j E8d1KZvd1uIzBVW9IyZ/1Df2mZF5/2hOWCLtsm8nWchIDXIFtx1jSvKpMv2P1yAd Qj5m5Lu08rCOV/YdfJbalIsuCoaKZHVCjwNPshncWRjo28RIIt1/qF7pTthmoodr n58CFAtCzZ/6ZAAFUBTmxtPBbxrKfA/Hnr5TslpU/hpXycrWSKb4ZAuHa4h7bu0H AK07oO8ExrslLGWpKSL/Jn1/NXB0p8vhIhM/jaVJMYAg9wVNUyoBewdccgHB4Zh8 Uz33FjWSIKTAzQ9ZIqOu8GSwVMZ2sFUBsf3n7dZYmx241AU9gcsOrEquit4CB2Xp 84oSo2Lo5xSO0QoXRxgavxfBMdgqJLfbgxxanVcklqW0qzcQ/wujO8XEjpF0PuWl XDsu6M8rfdfZw+jP7fZvHzk9buRPV17Ya8gF6pgbx19wvB3dNBY6LHPCSyq67dKX KUCpwwr6DqWzEUDtMN+mL19Xqe+xDJYDyAuNcGwC+0pzpj7lNBOV4CpiXjgkhVBs WyefvqZFtoni1ymw90h3HJG4KXeeFqDFYgABVwLkYlb472QchiCTypwmH+O7nLoa Vub4/R7cfRc= =C4Cr -----END PGP SIGNATURE-----