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ClamAV flere sårbarheder Advisory Available in English  Advisory Available in German 

Secunia Advisory: SA28117  
Udsendt: 2007-12-19
Sidste Opdt.: 2007-12-20

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

Software:Clam AntiVirus (clamav) 0.x

CVE reference:CVE-2007-6335 (Secunia mirror)
CVE-2007-6336 (Secunia mirror)
CVE-2007-6337 (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) eller kompromittere et sårbart system.

1) Et heltals-overflow i funktionen "cli_scanpe()" under håndteringen af MEW-pakkede executables kan udnyttes til at forårsage et heap-baseret buffer overflow via specielt udformede "ssize" og "dsize" værdier.

Succesfuld udnyttelse muliggør eksekvering af vilkårlig kode.

2) En off-by-one fejl i libclamav/mspack.c under håndteringen af MSZIP-komprimerede filer kan udnyttes til at crashe scanneren og potentielt eksekvere vilkårlig kode.

Løsning:
Opdatér til version 0.92.

Rapporteret af / Kredit:
1) Fundet af en anonym person og rapporteret via iDefense Labs.
2) Rapporteret i en bug af Török Edwin.

Forløb:
20-12-2007: Tilføjede sårbarhed #2.

Original Advisory:
ClamAV:
http://sourceforge.net/project/showno...?release_id=562254&group_id=86638

iDefense:
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=634

Bug 663:
https://wwws.clamav.net/bugzilla/show_bug.cgi?id=663



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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