{"id":"CVE-2018-18439","details":"DENX U-Boot through 2018.09-rc1 has a remotely exploitable buffer overflow via a malicious TFTP server because TFTP traffic is mishandled. Also, local exploitation can occur via a crafted kernel image.","modified":"2026-07-08T17:16:49.587908Z","published":"2018-11-20T19:29:00.620Z","references":[{"type":"EVIDENCE","url":"http://www.openwall.com/lists/oss-security/2018/11/02/2"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/u-boot/u-boot","events":[{"introduced":"0"},{"fixed":"f88b6facb87dc4a52f1630eb9d858c0f54c6628e"},{"introduced":"5a0007d481c0fcd2d422dd48b2a129dd8e8a272a"},{"last_affected":"5a0007d481c0fcd2d422dd48b2a129dd8e8a272a"}],"database_specific":{"cpe":["cpe:2.3:a:denx:u-boot:*:*:*:*:*:*:*:*","cpe:2.3:a:denx:u-boot:2018.09:rc1:*:*:*:*:*:*"],"extracted_events":[{"introduced":"0"},{"fixed":"2018.09"},{"introduced":"2018.09-rc1"},{"last_affected":"2018.09-rc1"}],"source":["CPE_RANGE","CPE_STRING"]}}],"versions":["2018.09-rc1","v2018.09-rc3","v2018.09-rc2","v2018.09-rc1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-18439.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:H/A:H"}]}