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     áòèé÷ :: Security-alerts
Security-Alerts mailing list archive (security-alerts@yandex-team.ru)

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[security-alerts] FW: [SA21557] Internet Explorer URL Parsing Buffer Overflow Vulnerability



> 
> TITLE:
> Internet Explorer URL Parsing Buffer Overflow Vulnerability
> 
> SECUNIA ADVISORY ID:
> SA21557
> 
> VERIFY ADVISORY:
> http://secunia.com/advisories/21557/
> 
> CRITICAL:
> Highly critical
> 
> IMPACT:
> System access
> 
> WHERE:
> From remote
> 
> SOFTWARE:
> Microsoft Internet Explorer 6.x
> http://secunia.com/product/11/
> 
> DESCRIPTION:
> A vulnerability has been reported in Internet Explorer, which can be
> exploited by malicious people to compromise a user's system.
> 
> The vulnerability is caused due to a boundary error when processing
> URLs on a website using HTTP 1.1 and compression. This can be
> exploited to cause a buffer overflow via an overly long URL.
> 
> Successful exploitation allows execution of arbitrary code when a
> user is e.g. tricked into visiting a malicious website.
> 
> The vulnerability affects Internet Explorer 6 SP1 on Windows 2000 and
> Windows XP SP1 and was introduced by the MS06-042 patches.
> 
> SOLUTION:
> The vendor recommends disabling the HTTP 1.1 protocol in Internet
> Explorer (see the vendor's advisory for details).
> 
> PROVIDED AND/OR DISCOVERED BY:
> Dejan Kovacevic, Bold Internet Solutions.
> Derek Soeder, eEye Digital Security.
> 
> ORIGINAL ADVISORY:
> Microsoft:
> http://www.microsoft.com/technet/security/advisory/923762.mspx
> http://support.microsoft.com/kb/923762/
> 
> OTHER REFERENCES:
> US-CERT VU#821156:
> http://www.kb.cert.org/vuls/id/821156
> 




 




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