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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2005.0901 -- US-CERT Technical Cyber Security Alert TA05-312A Microsoft Windows Image Processing Vulnerabilities 9 November 2005 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Windows Publisher: US-CERT Operating System: Windows Server 2003 Windows XP Windows 2000 Impact: Execute Arbitrary Code/Commands Denial of Service Access: Remote/Unauthenticated CVE Names: CVE-2005-2124 CVE-2005-2123 CVE-2005-0803 Ref: AL-2005.0038 Original Bulletin: http://www.us-cert.gov/cas/techalerts/TA05-312A.html - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 National Cyber Alert System Technical Cyber Security Alert TA05-312A Microsoft Windows Image Processing Vulnerabilities Original release date: November 08, 2005 Last revised: -- Source: US-CERT Systems Affected * Microsoft Windows 2000 * Microsoft Windows XP * Microsoft Windows Server 2003 For more complete information, refer to Microsoft Security Bulletin MS05-053. Overview Microsoft has released updates that address critical vulnerabilities in Windows graphics rendering services. A remote, unauthenticated attacker exploiting these vulnerabilities could execute arbitrary code or cause a denial of service on an affected system. I. Description The Microsoft Security Bulletin for November 2005 addresses multiple buffer overflows in Windows image processing routines. Viewing a specially crafted image from an application that uses a vulnerable routine may trigger these vulnerabilities. If this application can access images from remote sources, such as web sites or email, then remote exploitation is possible. Further information is available in the following US-CERT Vulnerability Notes: VU#300549 - Microsoft Windows Graphics Rendering Engine buffer overflow vulnerability Microsoft Windows Graphics Rendering Engine contains a buffer overflow that may allow a remote attacker to execute arbitrary code on a vulnerable system. (CVE-2005-2123) VU#433341 - Microsoft Windows vulnerable to buffer overflow via specially crafted "WMF" file Microsoft Windows may be vulnerable to remote code execution via a buffer overflow in the Windows Metafile image format handling. (CVE-2005-2124) VU#134756 - Microsoft Windows buffer overflow in Enhanced Metafile rendering API Microsoft Windows Enhanced Metafile Format image rendering routines contain a buffer overflow flaw that may allow an attacker to cause a denial-of-service condition. (CVE-2005-0803) III. Solution Apply Updates Microsoft has provided the updates to correct these vulnerabilities in Microsoft Security Bulletin MS05-053. These updates are also available on the Microsoft Update site. II. Impact A remote, unauthenticated attacker exploiting these vulnerabilities could execute arbitrary code with the privileges of the user. If the user is logged on with administrative privileges, the attacker could take control of an affected system. An attacker may also be able to cause a denial of service. Appendix A. References * Microsoft Security Bulletin MS05-053 - <http://www.microsoft.com/technet/security/bulletin/MS05-053.mspx> * Microsoft Security Bulletin Summary for November 2005 - <http://www.microsoft.com/technet/security/bulletin/ms05-nov.mspx> * US-CERT Vulnerability Note VU#300549 - <http://www.kb.cert.org/vuls/id/300549> * US-CERT Vulnerability Note VU#433341 - <http://www.kb.cert.org/vuls/id/433341> * US-CERT Vulnerability Note VU#134756 - <http://www.kb.cert.org/vuls/id/134756> * Microsoft Update - <https://update.microsoft.com/microsoftupdate> _________________________________________________________________ The most recent version of this document can be found at: <http://www.us-cert.gov/cas/techalerts/TA05-312A.html> _________________________________________________________________ Feedback can be directed to US-CERT. Please send email to: <cert@cert.org> with "TA05-312A Feedback VU#300549" in the subject. _________________________________________________________________ Revision History Nov 08, 2005: Initial release _________________________________________________________________ Produced 2005 by US-CERT, a government organization. Terms of use <http://www.us-cert.gov/legal.html> _________________________________________________________________ For instructions on subscribing to or unsubscribing from this mailing list, visit <http://www.us-cert.gov/cas/>. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (GNU/Linux) iQEVAwUBQ3E5BH0pj593lg50AQISLAf+NMAgk3Up6wWphjOIQ89miwTHvpXHGmIH /mxHQ3PoN82NPkr8NmnLHhNAHqi8+ZI15lrympvr6xvm8C8FTxPU+dCa9CxS3c4l FLbTDbACHeD/OYwgvbE70Gx5ZUG95MMXgCRMHGiwIHaSHRspUQRMjRN5JubPjsyL S737+Yr19hMw6JQOWhM+Pn0MyAs6qm+4gfnIxO2Z1PsmpnushpqW505U6B6ZkF7W zCU0zecdwtZCMhWTu+3L/MqAjzt7VCsd2iC+0HS7WLvAcWoFcEvlL6Ai/E/eJLDm HQnO34E8231CcKRT4VACvs1QPFV1pvw1pihOAXveiBFoHpCIdPLc6g== =faQS - -----END PGP SIGNATURE----- - --------------------------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 If you believe that your computer system has been compromised or attacked in any way, we encourage you to let us know by completing the secure National IT Incident Reporting Form at: http://www.auscert.org.au/render.html?it=3192 =========================================================================== 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 iQCVAwUBQ3FBwCh9+71yA2DNAQJnagP/T8JGwuKb6IJFVDr4i1NUA/yupYLG+p57 iPblgE4gEqRlbjV9TNrROPpveZDooZNbMTm/mP61xB7WGEHjakaDf+31eUj1u6HW i/yNFpOBLfLrKaqonjKJ/BYqZlxK+WglWl7HAJK6It3Evypk+SRdudZ3dIc/r2+b U2mmfRkdgG4= =0pNJ -----END PGP SIGNATURE-----