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Apple Mac OS X UFS ffs_mountfs() heltals-overflow Advisory Available in English  Advisory Available in German 

Secunia Advisory: SA23703  
Udsendt: 2007-01-11
Sidste Opdt.: 2007-03-14

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

OS:Apple Macintosh OS X


CVE reference:CVE-2007-0229 (Secunia mirror)

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Beskrivelse:
LMH har rapporteret en sårbarhed i Mac OS X, som potentielt kan udnyttes af ondsindede personer til at kompromittere en brugers system.

Sårbarheden skyldes et heltals-overflow i "ffs_mountfs()" funktionen under håndteringen af UFS filsystem disk-images. Dette kan udnyttes til at forårsage et heap-baseret buffer overflow via et specielt udformet UFS DMG-image.

Succesfuld udnyttelse kan muliggøre eksekvering af vilkårlig kode.

NOTE: Sårbarheden kan kun udnyttes eksternt via Safari, når "opening safe files after downloading" er aktiveret.

Sårbarheden er rapporteret i Mac OS X 10.4.8, men andre versioner kan også være berørte.

Løsning:
Opdatér til Mac OS X 10.4.9, eller installér Security Update 2007-003.
http://docs.info.apple.com/article.html?artnum=305214

Rapporteret af / Kredit:
LMH

Forløb:
17-01-2007: Tilføjede CVE-reference. Tilføjede link til US-CERT.
14-03-2007: Opdaterede løsningen.

Original Advisory:
http://projects.info-pull.com/moab/MOAB-10-01-2007.html

Andre Kilder:
US-CERT VU#552136:
http://www.kb.cert.org/vuls/id/552136



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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