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ClamAV MIME-header og CAB-fil Denial of Service sårbarheder Advisory Available in English  Advisory Available in German 

Secunia Advisory: SA24187  
Udsendt: 2007-02-16

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

Software:Clam AntiVirus (clamav) 0.x

CVE reference:CVE-2007-0897 (Secunia mirror)
CVE-2007-0898 (Secunia mirror)

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


Beskrivelse:
Der er rapporteret nogle sårbarheder i ClamAV, som kan udnyttes af ondsindede personer til at udføre et DoS (Denial of Service).

1) Input suppleret via parameteren "id" ved fortolkning af MIME-headers filtreres ikke korrekt, før det benyttes til at oprette lokale filer. Dette kan udnyttes til f.eks. at overskrive anti-virus signatur-filer via katalogtraverseringsangreb og forhindre malware i at blive detekteret.

2) En fil-descriptor læk under håndteringen af CAB-filer kan f.eks. udnyttes til at forhindre brugere i at sende gyldige arkiver via en specielt udformet CAB-fil med en cabinet-header indeholdende en record-længde på nul.

Løsning:
Opdatér til version 0.90.

Rapporteret af / Kredit:
Fundet af en anonym person og rapporteret via iDefense Labs.

Original Advisory:
iDefense Labs:
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=475
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=476



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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