Asterisk Open Source 1.6.0.x before 1.6.0.22, 1.6.1.x before 1.6.1.14, and 1.6.2.x before 1.6.2.2, and Business Edition C.3 before C.3.3.2, allows remote attackers to cause a denial of service (daemon crash) via an SIP T.38 negotiation with an SDP FaxMaxDatagram field that is (1) missing, (2) modified to contain a negative number, or (3) modified to contain a large number.

References

• https://nvd.nist.gov/vuln/detail/CVE-2010-0441
• https://issues.asterisk.org/view.php?id=16517
• https://issues.asterisk.org/view.php?id=16634
• https://issues.asterisk.org/view.php?id=16724
• http://downloads.asterisk.org/pub/security/AST-2010-001-1.6.0.diff
• http://downloads.asterisk.org/pub/security/AST-2010-001-1.6.1.diff
• http://downloads.asterisk.org/pub/security/AST-2010-001-1.6.2.diff
• http://downloads.asterisk.org/pub/security/AST-2010-001.html
• http://lists.fedoraproject.org/pipermail/package-announce/2010-March/037679.html
• http://secunia.com/advisories/38395
• http://secunia.com/advisories/39096
• http://securitytracker.com/id?1023532
• http://www.securityfocus.com/archive/1/509327/100/0/threaded
• http://www.securityfocus.com/bid/38047
• http://www.vupen.com/english/advisories/2010/0289