{"id":"UBUNTU-CVE-2018-19623","details":"In Wireshark 2.6.0 to 2.6.4 and 2.4.0 to 2.4.10, the LBMPDM dissector could crash. In addition, a remote attacker could write arbitrary data to any memory locations before the packet-scoped memory. This was addressed in epan/dissectors/packet-lbmpdm.c by disallowing certain negative values.","modified":"2025-09-08T16:45:05Z","published":"2018-11-29T04:29:00Z","upstream":["CVE-2018-19623"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-19623"},{"type":"REPORT","url":"https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=15132"},{"type":"REPORT","url":"https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=9c8645ec7b28e4d7193962ecd2a418613bf6a84f"},{"type":"REPORT","url":"https://www.wireshark.org/security/wnpa-sec-2018-53.html"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2018-19623"}],"affected":[{"package":{"name":"wireshark","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/wireshark@2.6.5-1~ubuntu14.04.1?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.6.5-1~ubuntu14.04.1"}]}],"versions":["1.10.2-1","1.10.3-1","1.10.5-1ubuntu1","1.10.5-2","1.10.6-1","1.12.1+g01b65bf-4+deb8u11ubuntu0.14.04.1","2.6.3-1~ubuntu14.04.1","2.6.4-2~ubuntu14.04.1"],"ecosystem_specific":{"binaries":[{"binary_name":"libwireshark-data","binary_version":"2.6.5-1~ubuntu14.04.1"},{"binary_name":"libwireshark-dev","binary_version":"2.6.5-1~ubuntu14.04.1"},{"binary_name":"libwireshark11","binary_version":"2.6.5-1~ubuntu14.04.1"},{"binary_name":"libwiretap-dev","binary_version":"2.6.5-1~ubuntu14.04.1"},{"binary_name":"libwiretap8","binary_version":"2.6.5-1~ubuntu14.04.1"},{"binary_name":"libwscodecs2","binary_version":"2.6.5-1~ubuntu14.04.1"},{"binary_name":"libwsutil-dev","binary_version":"2.6.5-1~ubuntu14.04.1"},{"binary_name":"libwsutil9","binary_version":"2.6.5-1~ubuntu14.04.1"},{"binary_name":"tshark","binary_version":"2.6.5-1~ubuntu14.04.1"},{"binary_name":"wireshark","binary_version":"2.6.5-1~ubuntu14.04.1"},{"binary_name":"wireshark-common","binary_version":"2.6.5-1~ubuntu14.04.1"},{"binary_name":"wireshark-dev","binary_version":"2.6.5-1~ubuntu14.04.1"},{"binary_name":"wireshark-gtk","binary_version":"2.6.5-1~ubuntu14.04.1"},{"binary_name":"wireshark-qt","binary_version":"2.6.5-1~ubuntu14.04.1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-19623.json"}},{"package":{"name":"wireshark","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/wireshark@2.6.5-1~ubuntu16.04.0?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.6.5-1~ubuntu16.04.0"}]}],"versions":["1.12.7+g7fc8978-1","1.12.8+g5b6e543-2","2.0.1+g59ea380-3build1","2.0.2+ga16e22e-1","2.2.6+g32dac6a-2ubuntu0.16.04","2.6.3-1~ubuntu16.04.1","2.6.4-2~ubuntu16.04.0"],"ecosystem_specific":{"binaries":[{"binary_name":"libwireshark-data","binary_version":"2.6.5-1~ubuntu16.04.0"},{"binary_name":"libwireshark-dev","binary_version":"2.6.5-1~ubuntu16.04.0"},{"binary_name":"libwireshark11","binary_version":"2.6.5-1~ubuntu16.04.0"},{"binary_name":"libwiretap-dev","binary_version":"2.6.5-1~ubuntu16.04.0"},{"binary_name":"libwiretap8","binary_version":"2.6.5-1~ubuntu16.04.0"},{"binary_name":"libwscodecs2","binary_version":"2.6.5-1~ubuntu16.04.0"},{"binary_name":"libwsutil-dev","binary_version":"2.6.5-1~ubuntu16.04.0"},{"binary_name":"libwsutil9","binary_version":"2.6.5-1~ubuntu16.04.0"},{"binary_name":"tshark","binary_version":"2.6.5-1~ubuntu16.04.0"},{"binary_name":"wireshark","binary_version":"2.6.5-1~ubuntu16.04.0"},{"binary_name":"wireshark-common","binary_version":"2.6.5-1~ubuntu16.04.0"},{"binary_name":"wireshark-dev","binary_version":"2.6.5-1~ubuntu16.04.0"},{"binary_name":"wireshark-gtk","binary_version":"2.6.5-1~ubuntu16.04.0"},{"binary_name":"wireshark-qt","binary_version":"2.6.5-1~ubuntu16.04.0"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-19623.json"}},{"package":{"name":"wireshark","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/wireshark@2.6.5-1~ubuntu18.04.0?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.6.5-1~ubuntu18.04.0"}]}],"versions":["2.4.2-1","2.4.3-1","2.4.4-1","2.4.5-1","2.6.3-1~ubuntu18.04.1","2.6.4-2~ubuntu18.04.0"],"ecosystem_specific":{"binaries":[{"binary_name":"libwireshark-data","binary_version":"2.6.5-1~ubuntu18.04.0"},{"binary_name":"libwireshark-dev","binary_version":"2.6.5-1~ubuntu18.04.0"},{"binary_name":"libwireshark11","binary_version":"2.6.5-1~ubuntu18.04.0"},{"binary_name":"libwiretap-dev","binary_version":"2.6.5-1~ubuntu18.04.0"},{"binary_name":"libwiretap8","binary_version":"2.6.5-1~ubuntu18.04.0"},{"binary_name":"libwscodecs2","binary_version":"2.6.5-1~ubuntu18.04.0"},{"binary_name":"libwsutil-dev","binary_version":"2.6.5-1~ubuntu18.04.0"},{"binary_name":"libwsutil9","binary_version":"2.6.5-1~ubuntu18.04.0"},{"binary_name":"tshark","binary_version":"2.6.5-1~ubuntu18.04.0"},{"binary_name":"wireshark","binary_version":"2.6.5-1~ubuntu18.04.0"},{"binary_name":"wireshark-common","binary_version":"2.6.5-1~ubuntu18.04.0"},{"binary_name":"wireshark-dev","binary_version":"2.6.5-1~ubuntu18.04.0"},{"binary_name":"wireshark-gtk","binary_version":"2.6.5-1~ubuntu18.04.0"},{"binary_name":"wireshark-qt","binary_version":"2.6.5-1~ubuntu18.04.0"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-19623.json"}}],"schema_version":"1.7.3","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":"medium"}]}