{"id":"UBUNTU-CVE-2018-14767","details":"In Kamailio before 5.0.7 and 5.1.x before 5.1.4, a crafted SIP message with a double \"To\" header and an empty \"To\" tag causes a segmentation fault and crash. The reason is missing input validation in the \"build_res_buf_from_sip_req\" core function. This could result in denial of service and potentially the execution of arbitrary code.","modified":"2026-01-30T00:46:44.264560Z","published":"2018-07-31T06:29:00Z","related":["USN-7416-1"],"upstream":["CVE-2018-14767"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-14767"},{"type":"REPORT","url":"https://skalatan.de/blog/advisory-hw-2018-05"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2018-14767"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7416-1"}],"affected":[{"package":{"name":"kamailio","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/kamailio@4.3.4-1.1ubuntu2.1+esm2?arch=source&distro=esm-apps/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.3.4-1.1ubuntu2.1+esm2"}]}],"versions":["4.3.1-2ubuntu1","4.3.4-1.1ubuntu1","4.3.4-1.1ubuntu2","4.3.4-1.1ubuntu2.1","4.3.4-1.1ubuntu2.1+esm1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: 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