Microsoft Internet Explorer DBCS Type property of Object tag buffer overflow

ie-dbcs-object-bo (12970)

High Risk

Description:

Microsoft Internet Explorer is vulnerable to a buffer overflow, caused by improper bounds checking when handling the 'Type' property of an 'Object' tag. By creating a malicious Web page containing an 'Object' tag with an overly long string in the 'Type' property and hosting the page on a Web site or by sending it to a potential victim as an HTML email, a remote attacker could overflow a buffer and execute arbitrary code on a victim's system, once the victim views the malicious page using Microsoft Internet Explorer.

Platforms Affected:

• Microsoft, Internet Explorer 5.01
• Microsoft, Internet Explorer 5.5
• Microsoft, Internet Explorer 6.0

Remedy:

Apply the appropriate patch for your system, as listed in the latest Microsoft Security Bulletin. See References.

— OR —

Use Microsoft Automatic Update if it is supported by your operating system. The original bulletin issued by Microsoft has been superseded.

Consequences:

Gain Access

References:

• CERT Advisory CA-2003-22, Multiple Vulnerabilities in Microsoft Internet Explorer at http://www.cert.org/advisories/CA-2003-22.html.
• CIAC Information Bulletin N-135, Microsoft Cumulative Patch for Internet Explorer at http://www.ciac.org/ciac/bulletins/n-135.shtml.
• Microsoft Security Bulletin MS03-032, Cumulative Patch for Internet Explorer (822925) at http://www.microsoft.com/technet/security/bulletin/ms03-032.mspx.
• Microsoft Security Bulletin MS03-040, Cumulative Patch for Internet Explorer (828750) at http://www.microsoft.com/technet/security/bulletin/ms03-040.mspx.
• Microsoft Security Bulletin MS03-048, Cumulative Security Update for Internet Explorer (824145) at http://www.microsoft.com/technet/security/bulletin/ms03-048.mspx.
• Microsoft Security Bulletin MS04-004, Cumulative Security Update for Internet Explorer (832894) at http://www.microsoft.com/technet/security/bulletin/ms04-004.mspx.
• Microsoft Security Bulletin MS04-025, Cumulative Security Update for Internet Explorer (867801) at http://www.microsoft.com/technet/security/bulletin/ms04-025.mspx.
• Microsoft Security Bulletin MS04-038, Cumulative Security Update for Internet Explorer (834707) at http://www.microsoft.com/technet/security/bulletin/ms04-038.mspx.
• Microsoft Security Bulletin MS04-040, Cumulative Security Update for Internet Explorer (889293) at http://www.microsoft.com/technet/security/bulletin/ms04-040.mspx.
• Microsoft Security Bulletin MS05-014, Cumulative Security Update for Internet Explorer (867282) at http://www.microsoft.com/technet/security/bulletin/ms05-014.mspx.
• Microsoft Security Bulletin MS05-020, Cumulative Security Update for Internet Explorer (890923) at http://www.microsoft.com/technet/security/Bulletin/MS05-020.mspx.
• Microsoft Security Bulletin MS05-025, Cumulative Security Update for Internet Explorer (883939) at http://www.microsoft.com/technet/security/bulletin/ms05-025.mspx.
• Microsoft Security Bulletin MS05-038, Cumulative Security Update for Internet Explorer (896727) at http://www.microsoft.com/technet/security/bulletin/ms05-038.mspx.
• Microsoft Security Bulletin MS05-052, Cumulative Security Update for Internet Explorer (896688) at http://www.microsoft.com/technet/security/Bulletin/MS05-052.mspx.
• Microsoft Security Bulletin MS05-054, Cumulative Security Update for Internet Explorer (905915) at http://www.microsoft.com/technet/security/Bulletin/MS05-054.mspx.
• Microsoft Security Bulletin MS06-004, Cumulative Security Update for Internet Explorer (910620) at http://www.microsoft.com/technet/security/Bulletin/MS06-004.mspx.
• Microsoft Security Bulletin MS06-013, Cumulative Security Update for Internet Explorer (912812) at http://www.microsoft.com/technet/security/Bulletin/MS06-013.mspx.
• Microsoft Security Bulletin MS06-021, Cumulative Security Update for Internet Explorer (916281) at http://www.microsoft.com/technet/security/Bulletin/MS06-021.mspx.
• Microsoft Security Bulletin MS06-042, Cumulative Security Update for Internet Explorer (918899) at http://www.microsoft.com/technet/security/bulletin/ms06-042.mspx.
• Microsoft Security Bulletin MS06-067, Cumulative Security Update for Internet Explorer (922760) at http://www.microsoft.com/technet/security/bulletin/ms06-067.mspx.
• Microsoft Security Bulletin MS06-072, Cumulative Security Update for Internet Explorer (925454) at http://www.microsoft.com/technet/security/Bulletin/MS06-072.mspx.
• Microsoft Security Bulletin MS07-016, Cumulative Security Update for Internet Explorer (928090) at http://www.microsoft.com/technet/security/Bulletin/ms07-016.mspx.
• Microsoft Security Bulletin MS07-027, Cumulative Security Update for Internet Explorer (931768) at http://www.microsoft.com/technet/security/bulletin/ms07-027.mspx.
• Microsoft Security Bulletin MS07-033, Cumulative Security Update for Internet Explorer (933566) at http://www.microsoft.com/technet/security/bulletin/ms07-033.mspx.
• Microsoft Security Bulletin MS07-045, Cumulative Security Update for Internet Explorer (937143) at http://www.microsoft.com/technet/security/bulletin/ms07-045.mspx.
• Microsoft Security Bulletin MS07-057, Cumulative Security Update for Internet Explorer (939653) at http://www.microsoft.com/technet/security/Bulletin/MS07-057.mspx.
• Microsoft Security Bulletin MS07-069, Cumulative Security Update for Internet Explorer (942615) at http://www.microsoft.com/technet/security/bulletin/ms07-069.mspx.
• Microsoft Security Bulletin MS08-010, Cumulative Security Update for Internet Explorer (944533) at http://www.microsoft.com/technet/security/bulletin/ms08-010.mspx.
• Microsoft Security Bulletin MS08-024, Cumulative Security Update for Internet Explorer (947864) at http://www.microsoft.com/technet/security/bulletin/ms08-024.mspx.
• Microsoft Security Bulletin MS08-031, Cumulative Security Update for Internet Explorer (950759) at http://www.microsoft.com/technet/security/Bulletin/MS08-031.mspx.
• Microsoft Security Bulletin MS08-045, Cumulative Security Update for Internet Explorer (953838) at http://www.microsoft.com/technet/security/bulletin/ms08-045.mspx.
• SNS Advisory No.68, Internet Explorer Object Type Buffer Overflow in Double-Byte Character Set Environment at http://www.lac.co.jp/security/english/snsadv_e/68_e.html.
• CVE-2003-0701: Buffer overflow in Internet Explorer 6 SP1 for certain languages that support double-byte encodings (e.g., Japanese) allows remote attackers to execute arbitrary code via the Type property of an Object tag, a variant of CVE-2003-0344.
• US-CERT VU#334928: Microsoft Internet Explorer contains buffer overflow in Type attribute of OBJECT element on double-byte character set systems

Reported:

Aug 20, 2003

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