{"id":"USN-4001-1","summary":"libseccomp vulnerability","details":"Jann Horn discovered that libseccomp did not correctly generate 64-bit\nsyscall argument comparisons with arithmetic operators (LT, GT, LE, GE).\nAn attacker could use this to bypass intended access restrictions for\nargument-filtered system calls.\n","modified":"2026-04-22T09:56:17.243302Z","published":"2019-05-30T21:45:56Z","related":["UBUNTU-CVE-2019-9893"],"upstream":["CVE-2019-9893","UBUNTU-CVE-2019-9893"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4001-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-9893"}],"affected":[{"package":{"name":"libseccomp","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/libseccomp@2.4.1-0ubuntu0.16.04.2?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.1-0ubuntu0.16.04.2"}]}],"versions":["2.2.3-2ubuntu1","2.2.3-2ubuntu2","2.2.3-2ubuntu3","2.2.3-3ubuntu1","2.2.3-3ubuntu3","2.3.1-2.1ubuntu2~16.04.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libseccomp2","binary_version":"2.4.1-0ubuntu0.16.04.2"},{"binary_name":"seccomp","binary_version":"2.4.1-0ubuntu0.16.04.2"}]},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2019-9893","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:16.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4001-1.json"}},{"package":{"name":"libseccomp","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/libseccomp@2.4.1-0ubuntu0.18.04.2?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.1-0ubuntu0.18.04.2"}]}],"versions":["2.3.1-2.1ubuntu3","2.3.1-2.1ubuntu4","2.3.1-2.1ubuntu4.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libseccomp2","binary_version":"2.4.1-0ubuntu0.18.04.2"},{"binary_name":"seccomp","binary_version":"2.4.1-0ubuntu0.18.04.2"}]},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:18.04:LTS","cves":[{"id":"CVE-2019-9893","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4001-1.json"}}],"schema_version":"1.7.5"}