-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 National Cyber Alert System Technical Cyber Security Alert TA07-191A Microsoft Updates for Multiple Vulnerabilities Original release date: July 10, 2007 Last revised: -- Source: US-CERT Systems Affected * Microsoft Windows * Microsoft Excel * Microsoft Publisher * Microsoft .NET Framework * Microsoft Internet Information Services (IIS) * Microsoft Windows Vista Firewall Overview Microsoft has released updates that address critical vulnerabilities in Microsoft Windows, Excel, Publisher, .NET Framework, Internet Information Services, and Windows Vista Firewall. Exploitation of these vulnerabilities could allow a remote, unauthenticated attacker to execute arbitrary code or cause a denial of service on a vulnerable system. I. Description Microsoft has released updates to address vulnerabilities that affect Microsoft Windows, Excel, Publisher, .NET Framework, Internet Information Services, and Windows Vista Firewall as part of the Microsoft Security Bulletin Summary for July 2007. The most severe vulnerabilities could allow a remote, unauthenticated attacker to execute arbitrary code or cause a denial of service on a vulnerable system. Further information about the vulnerabilities addressed by these updates is available in the Vulnerability Notes Database II. Impact A remote, unauthenticated attacker could execute arbitrary code on a vulnerable system. An attacker may also be able to cause a denial of service. III. Solution Apply updates from Microsoft Microsoft has provided updates for these vulnerabilities in the July 2007 Security Bulletins. The Security Bulletins describe any known issues related to the updates. Administrators are encouraged to note any known issues that are described in the Bulletins and test for any potentially adverse effects. System administrators may wish to consider using an automated patch distribution system such as Windows Server Update Services (WSUS). IV. References * US-CERT Vulnerability Notes for Microsoft July 2007 updates - * Securing Your Web Browser - * Microsoft Security Bulletin Summary for July 2007 - * Microsoft Update - * Microsoft Office Update - * Windows Server Update Services - ____________________________________________________________________ The most recent version of this document can be found at: ____________________________________________________________________ Feedback can be directed to US-CERT Technical Staff. Please send email to with "TA07-191A Feedback VU#487905" in the subject. ____________________________________________________________________ For instructions on subscribing to or unsubscribing from this mailing list, visit . ____________________________________________________________________ Produced 2007 by US-CERT, a government organization. Terms of use: ____________________________________________________________________ Revision History July 10, 2007: Initial release -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (GNU/Linux) iQEVAwUBRpPwhvRFkHkM87XOAQKWiQf/XFpYurcCFZ1qG700NatqdY7wL6pO4qbv hGzdzUJH+aRN7b6XaEE/ZLprWnyj2H8HbH+HAHOuKDOxBI7N6PQ4WPaeZ14tDsNP pNFg81LjE5Hlj6h5N2p8XML3t/4X7a7wk5YB7nhiBdisxAJ7iNjQ1BawjTlA9/kl dTaIRW2njHpupGLWuin60U/di12jI3JirgJHfiRK6Ruiqnv56rM7LS9IOT1HV5RR 0otIr1Dttdnmgveb0YOiz7A36nwMiCEUzcUu2rKzARpZ4gMBIrSbfkAJpyUE0w3K WMh1tgEt3fooTgvBUhpDjfxbMNka85wGbpizcsKnw6VVzIQAlr0y3Q== =FRhW -----END PGP SIGNATURE-----