{"id":"UBUNTU-CVE-2020-11940","details":"In nDPI through 3.2 Stable, an out-of-bounds read in concat_hash_string in ssh.c can be exploited by a network-positioned attacker that can send malformed SSH protocol messages on a network segment monitored by nDPI's library.","modified":"2026-02-04T02:46:36.053278Z","published":"2020-04-23T15:15:00Z","withdrawn":"2025-06-23T15:53:39Z","related":["CVE-2020-11940"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-11940"},{"type":"REPORT","url":"https://github.com/ntop/nDPI/commit/3bbb0cd3296023f6f922c71d21a1c374d2b0a435"},{"type":"REPORT","url":"https://securitylab.github.com/advisories/GHSL-2020-051_052-ntop-ndpi"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-11940"}],"affected":[{"package":{"name":"ndpi","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/ndpi?arch=src?distro=esm-apps/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.5.0-1","1.6-1","1.7.1~git20151130.6f3d5a7-1"],"ecosystem_specific":{"ubuntu_priority":"medium"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-11940.json"}},{"package":{"name":"ndpi","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/ndpi?arch=src?distro=esm-apps/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.8-1","2.2-1"],"ecosystem_specific":{"ubuntu_priority":"medium"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-11940.json"}},{"package":{"name":"ndpi","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/ndpi?arch=src?distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.6-4","2.6-5"],"ecosystem_specific":{"ubuntu_priority":"medium"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-11940.json"}},{"package":{"name":"ndpi","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/ndpi?arch=src?distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.0-4","4.2-2"],"ecosystem_specific":{"ubuntu_priority":"medium"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-11940.json"}},{"package":{"name":"ndpi","ecosystem":"Ubuntu:24.10","purl":"pkg:deb/ubuntu/ndpi?arch=src?distro=oracular"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.2-2.1build1"],"ecosystem_specific":{"ubuntu_priority":"medium"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-11940.json"}},{"package":{"name":"ndpi","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/ndpi?arch=src?distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.2-2","4.2-2.1","4.2-2.1build1"],"ecosystem_specific":{"ubuntu_priority":"medium"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-11940.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}