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FLAC media-filhåndtering heltals-overflows Advisory Available in English  Advisory Available in German 

Secunia Advisory: SA27210  
Udsendt: 2007-10-12
Sidste Opdt.: 2007-12-07

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

Software:FLAC 1.x

CVE reference:CVE-2007-4619 (Secunia mirror)
CVE-2007-6277 (Secunia mirror)
CVE-2007-6278 (Secunia mirror)
CVE-2007-6279 (Secunia mirror)

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Beskrivelse:
Der er rapporteret nogle sårbarheder i FLAC, som kan udnyttes af ondsindede personer til at kompromittere en brugers system.

Sårbarhederne skyldes heltals-overflows i diverse komponenter under håndteringen af FLAC media-filer og kan udnyttes til at forårsage heap-baserede buffer overflows via specielt udformede FLAC media-filer.

Succesfuld udnyttelse muliggør eksekvering af vilkårlig kode.

Sårbarhederne er rapporteret i version 1.2.0, men tidligere versioner og andre applikationer, der benytter det sårbare bibliotek, kan også være berørte.

Løsning:
Opdatér til version 1.2.1.
http://flac.sourceforge.net/download.html

Rapporteret af / Kredit:
* Sean de Regge via iDefense Labs.
* Greg Linares, eEye Digital Security

Forløb:
16-11-2007: Tilføjede yderligere information fra eEye. Tilføjede link til US-CERT.
07-12-2007: Tilføjede CVE-reference.

Original Advisory:
FLAC:
http://flac.sourceforge.net/changelog.html

iDefense Labs:
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=608

eEye:
http://research.eeye.com/html/advisories/published/AD20071115.html

Andre Kilder:
US-CERT VU#544656:
http://www.kb.cert.org/vuls/id/544656



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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