{"id":"CVE-2019-9893","aliases":["ALPINE-CVE-2019-9893","BELL-CVE-2019-9893","DEBIAN-CVE-2019-9893","EUVD-2019-19249","GHSA-8qf7-26p9-j472","MGASA-2020-0136","RHSA-2019:3624","SUSE-SU-2019:2517-1","SUSE-SU-2019:2941-1","UBUNTU-CVE-2019-9893","USN-4001-1","USN-4001-2","openSUSE-SU-2019:2280-1","openSUSE-SU-2019:2283-1","openSUSE-SU-2024:10989-1"],"status":"published","title":"libseccomp before 2.4.0 did not correctly generate 64-bit syscall argument comparisons using the...","description":"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.","severity":{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.03041,"percentile":0.87609,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2019-03-21T00:00:00Z","modified":"2026-10-20T10:51:34Z","fixes":[{"ecosystem":"Alpine:v3.10","package":"libseccomp","fixed_in":["2.4.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.11","package":"libseccomp","fixed_in":["2.4.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.12","package":"libseccomp","fixed_in":["2.4.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.13","package":"libseccomp","fixed_in":["2.4.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.14","package":"libseccomp","fixed_in":["2.4.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.15","package":"libseccomp","fixed_in":["2.4.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.16","package":"libseccomp","fixed_in":["2.4.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.17","package":"libseccomp","fixed_in":["2.4.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.18","package":"libseccomp","fixed_in":["2.4.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.19","package":"libseccomp","fixed_in":["2.4.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.20","package":"libseccomp","fixed_in":["2.4.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.21","package":"libseccomp","fixed_in":["2.4.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.22","package":"libseccomp","fixed_in":["2.4.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.23","package":"libseccomp","fixed_in":["2.4.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.24","package":"libseccomp","fixed_in":["2.4.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.8","package":"libseccomp","fixed_in":["2.4.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.9","package":"libseccomp","fixed_in":["2.4.0-r0"],"sources":["osv"]},{"ecosystem":"Debian:12","package":"libseccomp","fixed_in":["2.4.1-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"libseccomp","fixed_in":["2.4.1-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"libseccomp","fixed_in":["2.4.1-1"],"sources":["osv"]},{"ecosystem":"Mageia:7","package":"libseccomp","fixed_in":["2.4.2-1.mga7"],"sources":["osv"]},{"ecosystem":"Red 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Advisory","fix"]},{"url":"https://security.gentoo.org/glsa/201904-18","tags":["vendor-advisory","x_refsource_GENTOO","x_transferred","advisory"]},{"url":"https://usn.ubuntu.com/4001-1/","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred","web"]},{"url":"https://usn.ubuntu.com/4001-2/","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred","web"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00022.html","tags":["vendor-advisory","x_refsource_SUSE","x_transferred","web"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00027.html","tags":["vendor-advisory","x_refsource_SUSE","x_transferred","web"]},{"url":"https://access.redhat.com/errata/RHSA-2019:3624","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-9893","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-8qf7-26p9-j472"},{"url":"https://security.alpinelinux.org/vuln/CVE-2019-9893","tags":["advisory"]},{"url":"https://docs.bell-sw.com/security/cves/CVE-2019-9893","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2019-9893","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2020-0136.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=24523","tags":["report"]},{"url":"https://access.redhat.com/security/updates/classification/#moderate","tags":["article"]},{"url":"https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.1_release_notes/","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1688938","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1690897","tags":["report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2019/rhsa-2019_3624.json","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2019-9893","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2019-9893","tags":["advisory","report"]},{"url":"https://www.suse.com/support/update/announcement/2019/suse-su-20192517-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1082318","tags":["report"]},{"url":"https://bugzilla.suse.com/1128828","tags":["report"]},{"url":"https://bugzilla.suse.com/1142614","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2019-9893","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2019/suse-su-20192941-1/","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2019-9893","tags":["report"]},{"url":"https://www.openwall.com/lists/oss-security/2019/03/15/1","tags":["report"]},{"url":"http://www.paul-moore.com/blog/d/2019/03/libseccomp_v240.html","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-4001-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/notices/USN-4001-2","tags":["advisory"]},{"url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/T6BTDMAAEMEE2KT356XYSAOY6YPXMQ6B/#T6BTDMAAEMEE2KT356XYSAOY6YPXMQ6B","tags":["advisory"]},{"url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/NYDRQWJRBUZSB3DBB6RQ3QUB5GBSQN3T/#NYDRQWJRBUZSB3DBB6RQ3QUB5GBSQN3T","tags":["advisory"]},{"url":"","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2019-9893","description":"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.","status":"published","published":"2019-03-21T02:30:42Z","modified":"2024-08-04T22:01:55.155Z","updated_at":"2026-11-02T14:20:20.081405Z"}],"euvd":[{"id":"EUVD-2019-19249","description":"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.","status":"published","published":"2019-03-21T02:30:42Z","modified":"2024-08-04T22:01:55Z","updated_at":"2026-11-03T02:40:54.59684Z"}],"ghsa":[{"id":"GHSA-8qf7-26p9-j472","title":"libseccomp before 2.4.0 did not correctly generate 64-bit syscall argument comparisons using the...","description":"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.","status":"published","published":"2022-05-13T01:23:07Z","modified":"2023-02-01T05:06:59Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T14:50:27.906349Z"}],"nvd":[{"id":"CVE-2019-9893","description":"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.","status":"published","published":"2019-03-21T16:01:17.687Z","modified":"2026-06-17T02:44:48.11Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T14:05:09.523883Z"}],"osv":[{"id":"ALPINE-CVE-2019-9893","description":"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.","status":"published","published":"2019-03-21T16:01:17.687Z","modified":"2026-09-21T06:17:52.559930582Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:27:48.11886Z"},{"id":"BELL-CVE-2019-9893","title":"CVE-2019-9893 does not affect BellSoft software","status":"withdrawn","published":"2023-08-31T12:13:30.264645Z","modified":"2026-01-26T09:47:47.065823Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:28:15.340685Z"},{"id":"CVE-2019-9893","description":"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.","status":"published","published":"2019-03-21T16:01:17.687Z","modified":"2026-10-20T10:51:34.591061917Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:44:13.492058Z"},{"id":"DEBIAN-CVE-2019-9893","description":"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.","status":"published","published":"2019-03-21T16:01:17.687Z","modified":"2026-09-21T07:00:12.696506395Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:45:32.57265Z"},{"id":"RHSA-2019:3624","title":"Red Hat Security Advisory: libseccomp security, bug fix, and enhancement update","status":"published","published":"2024-09-16T02:38:54Z","modified":"2026-06-26T12:22:04.074239264Z","cvss":[{"version":"3.0","score":7.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"high"}],"updated_at":"2026-11-02T15:53:06.535721Z"},{"id":"UBUNTU-CVE-2019-9893","description":"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.","status":"published","published":"2019-03-21T00:00:00Z","modified":"2026-04-22T12:24:12.500944Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:54:22.212782Z"},{"id":"MGASA-2020-0136","title":"Updated libseccomp packages fix security vulnerability","description":"Updated libseccomp packages fix security vulnerability:\n\nJann 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 (CVE-2019-9893).\n","status":"published","published":"2020-03-10T19:04:50Z","modified":"2026-04-16T04:44:20.578796318Z","updated_at":"2026-11-02T15:49:41.151324Z"},{"id":"openSUSE-SU-2019:2280-1","title":"Security update for libseccomp","description":"This update for libseccomp fixes the following issues:\n\nSecurity issues fixed:\n\n- CVE-2019-9893: An incorrect generation of syscall filters in libseccomp was fixed (bsc#1128828)\n\nlibseccomp was updated to new upstream release 2.4.1:\n\n- Fix a BPF generation bug where the optimizer mistakenly\n  identified duplicate BPF code blocks.\n\nlibseccomp was updated to 2.4.0 (bsc#1128828 CVE-2019-9893):\n\n- Update the syscall table for Linux v5.0-rc5\n- Added support for the SCMP_ACT_KILL_PROCESS action\n- Added support for the SCMP_ACT_LOG action and SCMP_FLTATR_CTL_LOG attribute\n- Added explicit 32-bit (SCMP_AX_32(...)) and 64-bit (SCMP_AX_64(...)) argument comparison macros to help protect against unexpected sign extension\n- Added support for the parisc and parisc64 architectures\n- Added the ability to query and set the libseccomp API level via seccomp_api_get(3) and seccomp_api_set(3)\n- Return -EDOM on an endian mismatch when adding an architecture to a filter\n- Renumber the pseudo syscall number for subpage_prot() so it no longer conflicts with spu_run()\n- Fix PFC generation when a syscall is prioritized, but no rule exists\n- Numerous fixes to the seccomp-bpf filter generation code\n- Switch our internal hashing function to jhash/Lookup3 to MurmurHash3\n- Numerous tests added to the included test suite, coverage now at ~92%\n- Update our Travis CI configuration to use Ubuntu 16.04\n- Numerous documentation fixes and updates\n\nlibseccomp was updated to release 2.3.3:\n\n- Updated the syscall table for Linux v4.15-rc7\n\n\nThis update was imported from the SUSE:SLE-15:Update update project.","status":"published","published":"2019-10-07T14:21:04Z","modified":"2026-02-04T02:36:44.346943Z","updated_at":"2026-11-02T16:58:30.784344Z"},{"id":"openSUSE-SU-2019:2283-1","title":"Security update for libseccomp","description":"This update for libseccomp fixes the following issues:\n\nSecurity issues fixed:\n\n- CVE-2019-9893: An incorrect generation of syscall filters in libseccomp was fixed (bsc#1128828)\n\nlibseccomp was updated to new upstream release 2.4.1:\n\n- Fix a BPF generation bug where the optimizer mistakenly\n  identified duplicate BPF code blocks.\n\nlibseccomp was updated to 2.4.0 (bsc#1128828 CVE-2019-9893):\n\n- Update the syscall table for Linux v5.0-rc5\n- Added support for the SCMP_ACT_KILL_PROCESS action\n- Added support for the SCMP_ACT_LOG action and SCMP_FLTATR_CTL_LOG attribute\n- Added explicit 32-bit (SCMP_AX_32(...)) and 64-bit (SCMP_AX_64(...)) argument comparison macros to help protect against unexpected sign extension\n- Added support for the parisc and parisc64 architectures\n- Added the ability to query and set the libseccomp API level via seccomp_api_get(3) and seccomp_api_set(3)\n- Return -EDOM on an endian mismatch when adding an architecture to a filter\n- Renumber the pseudo syscall number for subpage_prot() so it no longer conflicts with spu_run()\n- Fix PFC generation when a syscall is prioritized, but no rule exists\n- Numerous fixes to the seccomp-bpf filter generation code\n- Switch our internal hashing function to jhash/Lookup3 to MurmurHash3\n- Numerous tests added to the included test suite, coverage now at ~92%\n- Update our Travis CI configuration to use Ubuntu 16.04\n- Numerous documentation fixes and updates\n\nlibseccomp was updated to release 2.3.3:\n\n- Updated the syscall table for Linux v4.15-rc7\n\n\nThis update was imported from the SUSE:SLE-15:Update update project.","status":"published","published":"2019-10-07T14:21:24Z","modified":"2026-02-04T03:09:47.935775Z","updated_at":"2026-11-02T16:58:30.784344Z"},{"id":"openSUSE-SU-2024:10989-1","title":"libseccomp-devel-2.5.2-2.1 on GA media","description":"These are all security issues fixed in the libseccomp-devel-2.5.2-2.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T04:39:23.936856Z","updated_at":"2026-11-02T16:58:34.894275Z"},{"id":"SUSE-SU-2019:2517-1","title":"Security update for libseccomp","description":"This update for libseccomp fixes the following issues:\n\nSecurity issues fixed:\n\n- CVE-2019-9893: An incorrect generation of syscall filters in libseccomp was fixed (bsc#1128828)\n\nlibseccomp was updated to new upstream release 2.4.1:\n\n- Fix a BPF generation bug where the optimizer mistakenly\n  identified duplicate BPF code blocks.\n\nlibseccomp was updated to 2.4.0 (bsc#1128828 CVE-2019-9893):\n\n- Update the syscall table for Linux v5.0-rc5\n- Added support for the SCMP_ACT_KILL_PROCESS action\n- Added support for the SCMP_ACT_LOG action and SCMP_FLTATR_CTL_LOG attribute\n- Added explicit 32-bit (SCMP_AX_32(...)) and 64-bit (SCMP_AX_64(...)) argument comparison macros to help protect against unexpected sign extension\n- Added support for the parisc and parisc64 architectures\n- Added the ability to query and set the libseccomp API level via seccomp_api_get(3) and seccomp_api_set(3)\n- Return -EDOM on an endian mismatch when adding an architecture to a filter\n- Renumber the pseudo syscall number for subpage_prot() so it no longer conflicts with spu_run()\n- Fix PFC generation when a syscall is prioritized, but no rule exists\n- Numerous fixes to the seccomp-bpf filter generation code\n- Switch our internal hashing function to jhash/Lookup3 to MurmurHash3\n- Numerous tests added to the included test suite, coverage now at ~92%\n- Update our Travis CI configuration to use Ubuntu 16.04\n- Numerous documentation fixes and updates\n\nlibseccomp was updated to release 2.3.3:\n\n- Updated the syscall table for Linux v4.15-rc7\n\n","status":"published","published":"2019-10-02T08:49:23Z","modified":"2026-02-04T02:26:56.031318Z","updated_at":"2026-11-02T15:53:47.06185Z"},{"id":"SUSE-SU-2019:2941-1","title":"Security update for libseccomp","description":"This update for libseccomp fixes the following issues:\n\nUpdate to new upstream release 2.4.1:\n\n* Fix a BPF generation bug where the optimizer mistakenly\n  identified duplicate BPF code blocks.\n\nUpdated to 2.4.0 (bsc#1128828 CVE-2019-9893):\n\n* Update the syscall table for Linux v5.0-rc5\n* Added support for the SCMP_ACT_KILL_PROCESS action\n* Added support for the SCMP_ACT_LOG action and SCMP_FLTATR_CTL_LOG attribute\n* Added explicit 32-bit (SCMP_AX_32(...)) and 64-bit (SCMP_AX_64(...)) argument comparison macros to help protect against unexpected sign extension\n* Added support for the parisc and parisc64 architectures\n* Added the ability to query and set the libseccomp API level via seccomp_api_get(3) and seccomp_api_set(3)\n* Return -EDOM on an endian mismatch when adding an architecture to a filter\n* Renumber the pseudo syscall number for subpage_prot() so it no longer conflicts with spu_run()\n* Fix PFC generation when a syscall is prioritized, but no rule exists\n* Numerous fixes to the seccomp-bpf filter generation code\n* Switch our internal hashing function to jhash/Lookup3 to MurmurHash3\n* Numerous tests added to the included test suite, coverage now at ~92%\n* Update our Travis CI configuration to use Ubuntu 16.04\n* Numerous documentation fixes and updates\n\nUpdate to release 2.3.3:\n\n* Updated the syscall table for Linux v4.15-rc7\n\nUpdate to release 2.3.2:\n\n* Achieved full compliance with the CII Best Practices program\n* Added Travis CI builds to the GitHub repository\n* Added code coverage reporting with the '--enable-code-coverage' configure\n  flag and added Coveralls to the GitHub repository\n* Updated the syscall tables to match Linux v4.10-rc6+\n* Support for building with Python v3.x\n* Allow rules with the -1 syscall if the SCMP\\_FLTATR\\_API\\_TSKIP attribute is\n  set to true\n* Several small documentation fixes\n\n- ignore make check error for ppc64/ppc64le, bypass bsc#1142614\n","status":"published","published":"2019-11-12T09:04:16Z","modified":"2026-02-04T03:16:40.889867Z","updated_at":"2026-11-02T15:53:47.06185Z"},{"id":"USN-4001-1","title":"libseccomp vulnerability","description":"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","status":"published","published":"2019-05-30T21:45:56Z","modified":"2026-04-22T09:56:17.243302Z","updated_at":"2026-11-02T16:58:14.019824Z"},{"id":"USN-4001-2","title":"libseccomp vulnerability","description":"USN-4001-1 fixed a vulnerability in libseccomp. This update provides the\ncorresponding update for Ubuntu 14.04 ESM.\n\nOriginal advisory details:\n\n Jann Horn discovered that libseccomp did not correctly generate 64-bit\n syscall argument comparisons with arithmetic operators (LT, GT, LE, GE).\n An attacker could use this to bypass intended access restrictions for\n argument-filtered system calls.\n","status":"published","published":"2019-05-30T22:57:44Z","modified":"2026-04-22T09:56:59.56196Z","updated_at":"2026-11-02T16:58:14.019824Z"}]}}