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MPlayer ASF filfortolkning heltal-overflows Advisory Available in English 

Secunia Advisory: SA18718  
Udsendt: 2006-02-07
Sidste Opdt.: 2006-02-09

Kritisk:
Moderat kritisk
Betydning: DoS
Systemadgang
Hvor: Fra Internet
Løsning Status: Ikke Patchet

Software:MPlayer 1.x

CVE reference:CVE-2006-0579 (Secunia mirror)

This advisory is currently marked as unpatched!
- Companies can be alerted when a patch is released!


Beskrivelse:
AFI Security Research har fundet to sårbarheder i mplayer, som kan udnyttes af ondsindede personer til at udføre et DoS (Denial of Service) og potentielt kompromittere en brugers system.

Sårbarhederne skyldes heltal-overflows i funktionen "new_demux_packet()" i "libmpdemux/demuxer.h" samt funktionen "demux_asf_read_packet()" i "libmpdemux/demux_asf.c" under allokering af hukommelse til kopiering af data fra en ".asf" fil. Dette kan udnyttes til at forårsage heap-baserede buffer overflows via en specielt udformet ".asf" fil med en meget stor værdi i pakke-længde feltet.

Sårbarhederne er bekræftet i version 1.0pre7try2, men andre versioner kan også være berørte.

Løsning:
Åbn kun ".asf" filer, der haves fuld tillid til.

Rapporteret af / Kredit:
AFI Security Research

Forløb:
09-02-2006: Tilføjede CVE-reference.



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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