{"id":"CVE-2019-11366","url":"https://www.cyber-defence.io/tools/cve/CVE-2019-11366","generatedAt":"2026-10-29T01:53:34.637Z","title":"As a result, the daemon is vulnerable to a denial of service attack due to a NULL pointer dereference.","description":"An issue was discovered in atftpd in atftp 0.7.1. It does not lock the thread_list_mutex mutex before assigning the current thread data structure. As a result, the daemon is vulnerable to a denial of service attack due to a NULL pointer dereference. If thread_data is NULL when assigned to current, and modified by another thread before a certain tftpd_list.c check, there is a crash when dereferencing current->next.","published":"2019-04-20T13:29:01.000Z","lastModified":"2026-06-17T02:12:47.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":5.9,"severity":"MEDIUM","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-476"],"affected":["atftp project/atftp"],"epss":{"score":0.02098,"percentile":0.81592,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (2.10%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://lists.debian.org/debian-lts-announce/2019/05/msg00012.html","source":"cve@mitre.org"},{"url":"https://pulsesecurity.co.nz/advisories/atftpd-multiple-vulnerabilities","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://seclists.org/bugtraq/2019/May/16","source":"cve@mitre.org"},{"url":"https://security.gentoo.org/glsa/202003-14","source":"cve@mitre.org"},{"url":"https://sourceforge.net/p/atftp/code/ci/382f76a90b44f81fec00e2f609a94def4a5d3580/","tags":["Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://usn.ubuntu.com/4540-1/","source":"cve@mitre.org"},{"url":"https://www.debian.org/security/2019/dsa-4438","source":"cve@mitre.org"},{"url":"https://lists.debian.org/debian-lts-announce/2019/05/msg00012.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://pulsesecurity.co.nz/advisories/atftpd-multiple-vulnerabilities","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://seclists.org/bugtraq/2019/May/16","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/202003-14","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://sourceforge.net/p/atftp/code/ci/382f76a90b44f81fec00e2f609a94def4a5d3580/","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/4540-1/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2019/dsa-4438","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-11366","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}