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Internet Explorer URL-håndtering buffer overflow Advisory Available in English 

Secunia Advisory: SA21557  
Udsendt: 2006-08-23
Sidste Opdt.: 2006-08-27

Kritisk:
Meget kritisk
Betydning: Systemadgang
Hvor: Fra Internet
Løsning Status: Producent Patch

Software:Microsoft Internet Explorer 6.x

CVE reference:CVE-2006-3869 (Secunia mirror)

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Beskrivelse:
Der er rapporteret en sårbarhed i Internet Explorer, som kan udnyttes af ondsindede personer til at kompromittere en brugers system.

Sårbarheden skyldes en ikke-kontrolleret buffer i funktionen "CMimeFt::Start()" i urlmon.dll under håndteringen af URLs på websites, der benytter HTTP 1.1 og komprimering. Dette kan udnyttes til at forårsage et heap-baseret buffer overflow via en meget lang URL (mere end 260 bytes).

Succesfuld udnyttelse muliggør eksekvering af vilkårlig kode, når en bruger f.eks. lokkes til at besøge et ondsindet website.

Sårbarheden berører Internet Explorer 6 SP1 på Windows 2000 og Windows XP SP1 og blev introduceret af rettelserne i MS06-042.

Do you have this product installed on your home computer? Scan using the free Personal Software Inspector. Check if a vulnerable version is installed on computers in your corporate network, using the Network Software Inspector.

Løsning:
Installér patch.

Internet Explorer 6 SP1 på Windows 2000 SP4 / Windows XP SP1:
http://www.microsoft.com/downloads/de...=C335CAA9-B9E6-403D-A039-2D3DCA723653

Rapporteret af / Kredit:
Fundet af:
* Dejan Kovacevic, Bold Internet Solutions.
* Derek Soeder, eEye Digital Security.
* Hu Qianwei, NSFocus Security Team.

Forløb:
23-08-2006: Tilføjede yderligere information.
25-08-2006: Tilføjede detaljer og opdaterede løsningen.
27-08-2006: Opdaterede link til producentens advisory.

Original Advisory:
MS06-042 (KB918899):
http://www.microsoft.com/technet/security/bulletin/MS06-042.mspx

Microsoft:
http://www.microsoft.com/technet/security/advisory/923762.mspx
http://support.microsoft.com/kb/923762/
http://blogs.technet.com/msrc/archive/2006/08/24/449860.aspx

eEye Digital Security:
http://research.eeye.com/html/advisories/published/AD20060824.html

NSFocus Security Team:
http://www.nsfocus.com/english/homepage/research/0608.htm

Andre Kilder:
US-CERT VU#821156:
http://www.kb.cert.org/vuls/id/821156



Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.

Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.

124 Relaterede Secunia Advisories, displaying 10

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