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Internet Explorer exception-håndtering hukommelses-korrumpering Advisory Available in English 

Secunia Advisory: SA19762  
Udsendt: 2006-04-25
Sidste Opdt.: 2006-06-15

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

Software:Microsoft Internet Explorer 5.01
Microsoft Internet Explorer 6.x

CVE reference:CVE-2006-1992 (Secunia mirror)
CVE-2006-2218 (Secunia mirror)

Want to know the next time vulnerabilities are fixed in this product?
- Companies can be alerted via email and SMS!


Beskrivelse:
Secunia Research har fundet en sårbarhed i Internet Explorer, som kan udnyttes af ondsindede personer til at kompromittere en brugers system.

Sårbarheden skyldes en fejl i håndteringen af exceptionelle hændelser, hvilket kan korrumpere hukommelsen. Dette kan f.eks. udnyttes ved at registrere en exception handler for et objekt og derefter forårsage en hændelse via f.eks. en speciel sekvens af indlejrede "object" HTML tags.

Succesfuld udnyttelse muliggør eksekvering af vilkårlig kode, når en bruger f.eks. besøger et ondsindet website.

NOTE: Denne sårbarhed er en variant af en browser crash-fejl oprindeligt rapporteret af Michal Zalewski.

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:
Installer patches.

Internet Explorer 5.01 SP4 på Windows 2000 SP4:
http://www.microsoft.com/downloads/de...=91A997DE-BAE4-4AC7-912D-79EF8ABAEF4F

Internet Explorer 6 SP1 på Windows 2000 SP4 eller Windows XP SP1:
http://www.microsoft.com/downloads/de...=0EB17A41-FB43-413B-A5CC-41E1F3DEDE4F

Internet Explorer 6 for Windows XP SP2:
http://www.microsoft.com/downloads/de...=85CABE87-C4A0-4F80-BD1C-210E23FD8D81

Internet Explorer 6 for Windows Server 2003 og Windows Server 2003 SP1:
http://www.microsoft.com/downloads/de...=CCE7C875-C9A4-4C3D-A37B-946EE5E781E7

Internet Explorer 6 for Windows Server 2003 for Itanium-baserede systemer (med eller uden SP1):
http://www.microsoft.com/downloads/de...=C8E4CFB6-1350-4AAE-B681-EE2ECAB41118

Internet Explorer 6 for Windows Server 2003 x64 Edition:
http://www.microsoft.com/downloads/de...=1C7D5C6D-DDCF-485D-A1E3-60E55334FD74

Internet Explorer 6 for Windows XP Professional x64 Edition:
http://www.microsoft.com/downloads/de...=F91791AC-8185-4346-AA66-89F74D4B5EA7

Internet Explorer 6 SP1 på Windows 98, Windows 98 SE eller Windows Me:
Patches er tilgængelige fra Windows Update websitet.

Rapporteret af / Kredit:
Andreas Sandblad, Secunia Research.

Oprindelig crash-fejl fundet af:
Michal Zalewski

Forløb:
28-04-2006: Opdaterede beskrivelsen for at gøre det klart, at Secunia succesfuldt har udnyttet sårbarheden.
01-05-2006: Opdaterede beskrivelsen. Under yderligere analyse blev det klart, at sårbarheden succesfuldt udnyttet af Secunia er en variant af sårbarheden fundet af Michal Zalewski.
05-05-2006: Tilføjede CVE-reference.
13-06-2006: Opdaterede advisory med yderligere information fra Microsoft.
15-06-2006: Tilføjede link til Secunia Research advisory.

Original Advisory:
MS06-021 (KB916281):
http://www.microsoft.com/technet/security/Bulletin/MS06-021.mspx

Secunia Research:
http://secunia.com/secunia_research/2006-41/

Andre Kilder:
KB-artikel omhandlende kendte problemer med installation af opdateringen:
http://support.microsoft.com/kb/916281

US-CERT VU#338828:
http://www.kb.cert.org/vuls/id/338828



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.

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