Microsoft Internet Explorer HTTP 1.1 compression long URL buffer overflow variant
| ie-url-compression-bo (28893) |  High Risk |
Description:
Microsoft Internet Explorer is vulnerable to a heap-based buffer overflow, caused by improper bounds checking of an overly long URL when viewing a Web site using HTTP 1.1 compression. A remote attacker could exploit this vulnerability to cause the victim's browser to crash or execute arbitrary code on the victim's system, if the attacker could persuade the victim to visit a malicious Web page.
Note: This vulnerability only affects systems with either the original MS06-042 update for Internet Explorer installed (August 8, 2006) or the re-released MS06-042 update for Internet Explorer installed (August 24, 2006).
Platforms Affected:
- Microsoft, Internet Explorer 5.01 SP4
- Microsoft, Internet Explorer 6 SP1
- Microsoft, Windows 2000 SP4
- Microsoft, Windows XP SP1
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 The original bulletin issued by Microsoft has been superseded.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:
- EEYEB-AD20060912, Internet Explorer Compressed Content URL Heap Overflow Vulnerability #2 at http://research.eeye.com/html/advisories/published/AD20060912.html.
- Microsoft Security Advisory (923762), Long URLs to sites using HTTP 1.1 and compression Could Cause Internet Explorer 6 Service Pack 1 to Unexpectedly Exit at http://www.microsoft.com/technet/security/advisory/923762.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.
- BID-19987: Microsoft Internet Explorer HTTP 1.1 and Compression Long URI Buffer Overflow Variant Vulnerability
- CVE-2006-3873: Heap-based buffer overflow in URLMON.DLL in Microsoft Internet Explorer 6 SP1 on Windows 2000 and XP SP1, with versions the MS06-042 patch before 20060912, allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a long URL in a GZIP-encoded website that was the target of an HTTP redirect, due to an incomplete fix for CVE-2006-3869.
- OSVDB ID: 30834: Microsoft IE URLMON.DLL Long URL HTTP Redirect Overflow
- SECTRACK ID: 1016839: Microsoft Internet Explorer URLMON.DLL Buffer Overflow Lets Remote Users Execute Arbitrary Code
Reported:
Sep 12, 2006
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