{"id":"UBUNTU-CVE-2017-16875","details":"An issue was discovered in Teluu pjproject (pjlib and pjlib-util) in PJSIP before 2.7.1. The ioqueue component may issue a double key unregistration after an attacker initiates a socket connection with specific settings and sequences. Such double key unregistration will trigger an integer overflow, which may cause ioqueue backends to reject future key registrations.","modified":"2026-04-22T12:10:41.292459Z","published":"2017-11-17T16:29:00Z","related":["USN-8122-1"],"upstream":["CVE-2017-16875"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2017-16875"},{"type":"REPORT","url":"https://trac.pjsip.org/repos/ticket/2055"},{"type":"REPORT","url":"https://trac.pjsip.org/repos/changeset/5680"},{"type":"REPORT","url":"https://trac.pjsip.org/repos/milestone/release-2.7.1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2017-16875"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8122-1"}],"affected":[{"package":{"name":"pjproject","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/pjproject@2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1?arch=source&distro=esm-apps/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1"}]}],"versions":["2.1.0.0.ast20130823-1","2.1.0.0.ast20130823-1+deb8u1build0.16.04.1"],"ecosystem_specific":{"binaries":[{"binary_name":"libpj2","binary_version":"2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1"},{"binary_name":"libpjlib-util2","binary_version":"2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1"},{"binary_name":"libpjmedia-audiodev2","binary_version":"2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1"},{"binary_name":"libpjmedia-codec2","binary_version":"2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1"},{"binary_name":"libpjmedia-videodev2","binary_version":"2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1"},{"binary_name":"libpjmedia2","binary_version":"2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1"},{"binary_name":"libpjnath2","binary_version":"2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1"},{"binary_name":"libpjsip-simple2","binary_version":"2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1"},{"binary_name":"libpjsip-ua2","binary_version":"2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1"},{"binary_name":"libpjsip2","binary_version":"2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1"},{"binary_name":"libpjsua2","binary_version":"2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-16875.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"low"}]}