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Asterisk SIP-pakkehåndtering Denial of Service Advisory Available in English  Advisory Available in German 

Secunia Advisory: SA24380  
Udsendt: 2007-03-07
Sidste Opdt.: 2007-03-19

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

Software:Asterisk 1.x

CVE reference:CVE-2007-1306 (Secunia mirror)

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Beskrivelse:
MU Security Research Team har rapporteret en sårbarhed i Asterisk, som kan udnyttes af ondsindede personer til at udføre et DoS (Denial of Service).

Sårbarheden skyldes en NULL-pointer dereferencefejl under håndteringen af SIP-forespørgsler. Dette kan udnyttes til at crashe servicen via en specielt udformet SIP-besked uden URI og SIP-version sendt til servicen (som standard port 5060/UDP).

Sårbarheden er rapporteret i version 1.4.0 og 1.2.15, men tidligere versioner kan også være berørte.

Løsning:
Opdatér til version 1.4.1 eller 1.2.16.

Rapporteret af / Kredit:
MU Security Research Team

Forløb:
08-03-2007: Tilføjede information fra MU Security.
19-03-2007: Tilføjede CVE-reference.

Original Advisory:
Asterisk:
http://asterisk.org/node/48320
http://asterisk.org/node/48319

MU Security:
http://labs.musecurity.com/advisories/MU-200703-01.txt

Andre Kilder:
US-CERT VU#228032:
http://www.kb.cert.org/vuls/id/228032



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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