{"id":"UBUNTU-CVE-2018-18765","details":"An exploitable arbitrary memory read vulnerability exists in the MQTT packet-parsing functionality of Cesanta Mongoose 6.13. It is a heap-based buffer over-read in mg_mqtt_next_subscribe_topic. A specially crafted MQTT SUBSCRIBE packet can cause an arbitrary out-of-bounds memory read potentially resulting in information disclosure and denial of service. An attacker needs to send a specially crafted MQTT packet over the network to trigger this vulnerability.","modified":"2025-07-16T08:22:37.076473Z","published":"2018-10-29T12:29:00Z","withdrawn":"2025-07-18T16:44:48Z","upstream":["CVE-2018-18765"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-18765"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2018-18765"}],"affected":[{"package":{"name":"smplayer","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/smplayer@19.10.2~ds0-1build1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"19.10.2~ds0-1build1"}]}],"versions":["18.10.0~ds0-1","19.10.2~ds0-1"],"ecosystem_specific":{"binaries":[{"binary_name":"smplayer","binary_version":"19.10.2~ds0-1build1"},{"binary_name":"smplayer-dbgsym","binary_version":"19.10.2~ds0-1build1"},{"binary_name":"smplayer-l10n","binary_version":"19.10.2~ds0-1build1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-18765.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:H/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}