{"id":"CVE-2019-13120","details":"Amazon FreeRTOS up to and including v1.4.8 lacks length checking in prvProcessReceivedPublish, resulting in untargetable leakage of arbitrary memory contents on a device to an attacker. If an attacker has the authorization to send a malformed MQTT publish packet to an Amazon IoT Thing, which interacts with an associated vulnerable MQTT message in the application, specific circumstances could trigger this vulnerability.","modified":"2026-03-14T09:32:39.760916Z","published":"2019-10-07T22:15:10.477Z","references":[{"type":"ADVISORY","url":"https://aws.amazon.com/cn/freertos/security-updates/"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/aws/amazon-freertos","events":[{"introduced":"0"},{"last_affected":"62ec42e0455c0ff6bebd56799b6e6d4123e37c57"}],"database_specific":{"versions":[{"introduced":"0"},{"last_affected":"1.4.8"}]}}],"versions":["v1.0.0","v1.1.0","v1.2.0","v1.2.1","v1.2.2","v1.2.3","v1.2.4","v1.2.5","v1.2.6","v1.2.7","v1.3.0","v1.3.1","v1.3.2","v1.4.0","v1.4.1","v1.4.2","v1.4.3","v1.4.4","v1.4.5","v1.4.6","v1.4.7","v1.4.8"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-13120.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}]}