PJSIP, as used in Asterisk Open Source 13.x before 13.15.1 and 14.x before 14.4.1, Certified Asterisk 13.13 before 13.13-cert4, and other products, allows remote attackers to cause a denial of service (buffer overflow and application crash) via a SIP packet with a crafted CSeq header in conjunction with a Via header that lacks a branch parameter.
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{ "availability": "No subscription required", "binaries": [ { "binary_version": "2.1.0.0.ast20130823-1+deb8u1build0.16.04.1", "binary_name": "libpj2" }, { "binary_version": "2.1.0.0.ast20130823-1+deb8u1build0.16.04.1", "binary_name": "libpjlib-util2" }, { "binary_version": "2.1.0.0.ast20130823-1+deb8u1build0.16.04.1", "binary_name": "libpjmedia-audiodev2" }, { "binary_version": "2.1.0.0.ast20130823-1+deb8u1build0.16.04.1", "binary_name": "libpjmedia-codec2" }, { "binary_version": "2.1.0.0.ast20130823-1+deb8u1build0.16.04.1", "binary_name": "libpjmedia-videodev2" }, { "binary_version": "2.1.0.0.ast20130823-1+deb8u1build0.16.04.1", "binary_name": "libpjmedia2" }, { "binary_version": "2.1.0.0.ast20130823-1+deb8u1build0.16.04.1", "binary_name": "libpjnath2" }, { "binary_version": "2.1.0.0.ast20130823-1+deb8u1build0.16.04.1", "binary_name": "libpjproject-dev" }, { "binary_version": "2.1.0.0.ast20130823-1+deb8u1build0.16.04.1", "binary_name": "libpjsip-simple2" }, { "binary_version": "2.1.0.0.ast20130823-1+deb8u1build0.16.04.1", "binary_name": "libpjsip-ua2" }, { "binary_version": "2.1.0.0.ast20130823-1+deb8u1build0.16.04.1", "binary_name": "libpjsip2" }, { "binary_version": "2.1.0.0.ast20130823-1+deb8u1build0.16.04.1", "binary_name": "libpjsua2" } ] }