{"id":"UBUNTU-CVE-2019-9893","details":"libseccomp before 2.4.0 did not correctly generate 64-bit syscall argument comparisons using the arithmetic operators (LT, GT, LE, GE), which might able to lead to bypassing seccomp filters and potential privilege escalations.","modified":"2026-04-22T13:55:46.380289Z","published":"2019-03-21T00:00:00Z","related":["USN-4001-1","USN-4001-2"],"upstream":["CVE-2019-9893"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-9893"},{"type":"REPORT","url":"https://www.openwall.com/lists/oss-security/2019/03/15/1"},{"type":"REPORT","url":"http://www.paul-moore.com/blog/d/2019/03/libseccomp_v240.html"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4001-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4001-2"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2019-9893"}],"affected":[{"package":{"name":"libseccomp","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/libseccomp@2.4.1-0ubuntu0.14.04.2?arch=source&distro=trusty/esm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.1-0ubuntu0.14.04.2"}]}],"versions":["1.0.1-2","2.1.0+dfsg-1","2.1.1-1ubuntu1~trusty3","2.1.1-1ubuntu1~trusty4","2.1.1-1ubuntu1~trusty5"],"ecosystem_specific":{"binaries":[{"binary_version":"2.4.1-0ubuntu0.14.04.2","binary_name":"libseccomp2"},{"binary_version":"2.4.1-0ubuntu0.14.04.2","binary_name":"seccomp"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-9893.json"}},{"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":{"binaries":[{"binary_version":"2.4.1-0ubuntu0.16.04.2","binary_name":"libseccomp2"},{"binary_version":"2.4.1-0ubuntu0.16.04.2","binary_name":"seccomp"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-9893.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":{"binaries":[{"binary_version":"2.4.1-0ubuntu0.18.04.2","binary_name":"libseccomp2"},{"binary_version":"2.4.1-0ubuntu0.18.04.2","binary_name":"seccomp"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-9893.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}