{"id":"CVE-2023-34323","aliases":["ALPINE-CVE-2023-34323","DEBIAN-CVE-2023-34323","EUVD-2023-38404","GHSA-85fq-cwc3-mp4q","SUSE-SU-2023:4054-1","SUSE-SU-2023:4055-1","SUSE-SU-2023:4174-1","SUSE-SU-2023:4183-1","SUSE-SU-2023:4184-1","SUSE-SU-2023:4185-1","UBUNTU-CVE-2023-34323","openSUSE-SU-2024:13442-1"],"status":"published","title":"xenstored: A transaction conflict can crash C Xenstored","description":"When a transaction is committed, C Xenstored will first check\nthe quota is correct before attempting to commit any nodes.  It would\nbe possible that accounting is temporarily negative if a node has\nbeen removed outside of the transaction.\n\nUnfortunately, some versions of C Xenstored are assuming that the\nquota cannot be negative and are using assert() to confirm it.  This\nwill lead to C Xenstored crash when tools are built without -DNDEBUG\n(this is the default).","severity":{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00245,"percentile":0.15889,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-476"],"published":"2023-10-12T07:49:44Z","modified":"2026-10-26T18:01:58Z","fixes":[{"ecosystem":"Alpine:v3.15","package":"xen","fixed_in":["4.15.5-r3"],"sources":["osv"]},{"ecosystem":"Alpine:v3.16","package":"xen","fixed_in":["4.16.5-r3"],"sources":["osv"]},{"ecosystem":"Alpine:v3.17","package":"xen","fixed_in":["4.16.5-r3"],"sources":["osv"]},{"ecosystem":"Alpine:v3.18","package":"xen","fixed_in":["4.17.2-r3"],"sources":["osv"]},{"ecosystem":"Alpine:v3.19","package":"xen","fixed_in":["4.17.2-r3"],"sources":["osv"]},{"ecosystem":"Alpine:v3.20","package":"xen","fixed_in":["4.17.2-r3"],"sources":["osv"]},{"ecosystem":"Alpine:v3.21","package":"xen","fixed_in":["4.17.2-r3"],"sources":["osv"]},{"ecosystem":"Alpine:v3.22","package":"xen","fixed_in":["4.17.2-r3"],"sources":["osv"]},{"ecosystem":"Alpine:v3.23","package":"xen","fixed_in":["4.17.2-r3"],"sources":["osv"]},{"ecosystem":"Alpine:v3.24","package":"xen","fixed_in":["4.17.2-r3"],"sources":["osv"]},{"ecosystem":"Debian:12","package":"xen","fixed_in":["4.17.2+76-ge1f9cb16e2-1~deb12u1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"xen","fixed_in":["4.17.2+55-g0b56bed864-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"xen","fixed_in":["4.17.2+55-g0b56bed864-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Alpine:v3.15","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.5-r3"}]}]},{"source":"osv","ecosystem":"Alpine:v3.16","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.16.5-r3"}]}]},{"source":"osv","ecosystem":"Alpine:v3.17","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.16.5-r3"}]}]},{"source":"osv","ecosystem":"Alpine:v3.18","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.17.2-r3"}]}]},{"source":"osv","ecosystem":"Alpine:v3.19","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.17.2-r3"}]}]},{"source":"osv","ecosystem":"Alpine:v3.20","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.17.2-r3"}]}]},{"source":"osv","ecosystem":"Alpine:v3.21","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.17.2-r3"}]}]},{"source":"osv","ecosystem":"Alpine:v3.22","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.17.2-r3"}]}]},{"source":"osv","ecosystem":"Alpine:v3.23","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.17.2-r3"}]}]},{"source":"osv","ecosystem":"Alpine:v3.24","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.17.2-r3"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.17.2+76-ge1f9cb16e2-1~deb12u1"}]}],"versions":["4.17.1+2-gb773c48e36-1","4.17.2+55-g0b56bed864-1","4.17.2-1"]},{"source":"osv","ecosystem":"Debian:13","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.17.2+55-g0b56bed864-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.17.2+55-g0b56bed864-1"}]}]},{"source":"osv","ecosystem":"SUSE:Linux 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Advisory","fix"]},{"url":"http://xenbits.xen.org/xsa/advisory-440.html","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-34323"},{"url":"https://github.com/advisories/GHSA-85fq-cwc3-mp4q"},{"url":"https://security.alpinelinux.org/vuln/CVE-2023-34323","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2023-34323","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2023/suse-su-20234054-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1215744","tags":["report"]},{"url":"https://bugzilla.suse.com/1215746","tags":["report"]},{"url":"https://bugzilla.suse.com/1215747","tags":["report"]},{"url":"https://bugzilla.suse.com/1215748","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2023-34323","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-34325","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-34326","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-34327","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-34328","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2023/suse-su-20234055-1/","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2023/suse-su-20234174-1/","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2023/suse-su-20234183-1/","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2023/suse-su-20234184-1/","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2023/suse-su-20234185-1/","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2023-34323","tags":["report"]},{"url":"https://xenbits.xen.org/xsa/advisory-440.html","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-34323","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2023-46835","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-46836","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2023-34323","title":"xenstored: A transaction conflict can crash C Xenstored","description":"When a transaction is committed, C Xenstored will first check\nthe quota is correct before attempting to commit any nodes.  It would\nbe possible that accounting is temporarily negative if a node has\nbeen removed outside of the transaction.\n\nUnfortunately, some versions of C Xenstored are assuming that the\nquota cannot be negative and are using assert() to confirm it.  This\nwill lead to C Xenstored crash when tools are built without -DNDEBUG\n(this is the default).\n","status":"published","published":"2024-01-05T16:30:32.305Z","modified":"2025-11-04T19:16:36.587Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"adp"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:35:35.912488Z"}],"euvd":[{"id":"EUVD-2023-38404","description":"When a transaction is committed, C Xenstored will first check\nthe quota is correct before attempting to commit any nodes.  It would\nbe possible that accounting is temporarily negative if a node has\nbeen removed outside of the transaction.\n\nUnfortunately, some versions of C Xenstored are assuming that the\nquota cannot be negative and are using assert() to confirm it.  This\nwill lead to C Xenstored crash when tools are built without -DNDEBUG\n(this is the default).\n","status":"published","published":"2024-01-05T16:30:32Z","modified":"2025-11-04T19:16:36Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T19:49:22.434386Z"}],"ghsa":[{"id":"GHSA-85fq-cwc3-mp4q","title":"When a transaction is committed, C Xenstored will first check\nthe quota is correct before...","description":"When a transaction is committed, C Xenstored will first check\nthe quota is correct before attempting to commit any nodes.  It would\nbe possible that accounting is temporarily negative if a node has\nbeen removed outside of the transaction.\n\nUnfortunately, some versions of C Xenstored are assuming that the\nquota cannot be negative and are using assert() to confirm it.  This\nwill lead to C Xenstored crash when tools are built without -DNDEBUG\n(this is the default).","status":"published","published":"2024-01-05T18:30:25Z","modified":"2025-11-04T21:30:54Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T15:04:36.009389Z"}],"nvd":[{"id":"CVE-2023-34323","description":"When a transaction is committed, C Xenstored will first check\nthe quota is correct before attempting to commit any nodes.  It would\nbe possible that accounting is temporarily negative if a node has\nbeen removed outside of the transaction.\n\nUnfortunately, some versions of C Xenstored are assuming that the\nquota cannot be negative and are using assert() to confirm it.  This\nwill lead to C Xenstored crash when tools are built without -DNDEBUG\n(this is the default).\n","status":"published","published":"2024-01-05T17:15:08.493Z","modified":"2026-06-17T06:03:23.36Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:08:59.830468Z"}],"osv":[{"id":"ALPINE-CVE-2023-34323","description":"When a transaction is committed, C Xenstored will first check\nthe quota is correct before attempting to commit any nodes.  It would\nbe possible that accounting is temporarily negative if a node has\nbeen removed outside of the transaction.\n\nUnfortunately, some versions of C Xenstored are assuming that the\nquota cannot be negative and are using assert() to confirm it.  This\nwill lead to C Xenstored crash when tools are built without -DNDEBUG\n(this is the default).\n","status":"published","published":"2024-01-05T17:15:08.493Z","modified":"2026-10-26T17:17:58.626309934Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:27:49.709457Z"},{"id":"CVE-2023-34323","description":"When a transaction is committed, C Xenstored will first check\nthe quota is correct before attempting to commit any nodes.  It would\nbe possible that accounting is temporarily negative if a node has\nbeen removed outside of the transaction.\n\nUnfortunately, some versions of C Xenstored are assuming that the\nquota cannot be negative and are using assert() to confirm it.  This\nwill lead to C Xenstored crash when tools are built without -DNDEBUG\n(this is the default).\n","status":"published","published":"2024-01-05T17:15:08.493Z","modified":"2026-03-14T12:05:34.379263Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:44:32.116263Z"},{"id":"DEBIAN-CVE-2023-34323","description":"When a transaction is committed, C Xenstored will first check the quota is correct before attempting to commit any nodes.  It would be possible that accounting is temporarily negative if a node has been removed outside of the transaction.  Unfortunately, some versions of C Xenstored are assuming that the quota cannot be negative and are using assert() to confirm it.  This will lead to C Xenstored crash when tools are built without -DNDEBUG (this is the default).","status":"published","published":"2024-01-05T17:15:08.493Z","modified":"2026-10-26T18:01:58.975145437Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:45:39.679062Z"},{"id":"UBUNTU-CVE-2023-34323","description":"When a transaction is committed, C Xenstored will first check the quota is correct before attempting to commit any nodes.  It would be possible that accounting is temporarily negative if a node has been removed outside of the transaction. Unfortunately, some versions of C Xenstored are assuming that the quota cannot be negative and are using assert() to confirm it.  This will lead to C Xenstored crash when tools are built without -DNDEBUG (this is the default).","status":"published","published":"2024-01-05T17:15:00Z","modified":"2026-10-17T12:57:19.531929304Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"},{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T16:54:21.882004Z"},{"id":"openSUSE-SU-2024:13442-1","title":"xen-4.18.0_02-1.1 on GA media","description":"These are all security issues fixed in the xen-4.18.0_02-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T03:12:24.087443Z","updated_at":"2026-11-02T16:58:36.327643Z"},{"id":"SUSE-SU-2023:4054-1","title":"Security update for xen","description":"This update for xen fixes the following issues:\n\n- CVE-2023-34323: A transaction conflict can crash C Xenstored (XSA-440, bsc#1215744)\n- CVE-2023-34326: Missing IOMMU TLB flushing (XSA-442, bsc#1215746)\n- CVE-2023-34325: Multiple vulnerabilities in libfsimage disk handling (XSA-443, bsc#1215747)\n- CVE-2023-34327: Debug Mask handling (XSA-444, bsc#1215748)\n- CVE-2023-34328: Debug Mask handling (XSA-444, bsc#1215748)\n","status":"published","published":"2023-10-12T07:49:44Z","modified":"2026-02-04T04:40:20.819269Z","updated_at":"2026-11-02T15:53:53.440387Z"},{"id":"SUSE-SU-2023:4055-1","title":"Security update for xen","description":"This update for xen fixes the following issues:\n\n- CVE-2023-34323: A transaction conflict can crash C Xenstored (XSA-440, bsc#1215744)\n- CVE-2023-34326: Missing IOMMU TLB flushing (XSA-442, bsc#1215746)\n- CVE-2023-34325: Multiple vulnerabilities in libfsimage disk handling (XSA-443, bsc#1215747)\n- CVE-2023-34327: Debug Mask handling (XSA-444, bsc#1215748)\n- CVE-2023-34328: Debug Mask handling (XSA-444, bsc#1215748)\n","status":"published","published":"2023-10-12T07:51:07Z","modified":"2025-05-02T04:35:04.149104Z","updated_at":"2026-11-02T15:53:53.440387Z"},{"id":"SUSE-SU-2023:4174-1","title":"Security update for xen","description":"This update for xen fixes the following issues:\n\n- CVE-2023-34323: Fixed a potential crash in C Xenstored due to an\n  incorrect assertion (XSA-440) (bsc#1215744).\n- CVE-2023-34326: Fixed a missing IOMMU TLB flush on x86 AMD systems\n  with IOMMU hardware and PCI passthrough enabled (XSA-442)\n  (bsc#1215746).\n- CVE-2023-34325: Fixed multiple parsing issues in libfsimage\n  (XSA-443) (bsc#1215747).\n- CVE-2023-34327, CVE-2023-34328: Fixed multiple issues with AMD x86\n  debugging functionality for guests (XSA-444) (bsc#1215748).\n","status":"published","published":"2023-10-24T10:36:52Z","modified":"2026-02-04T03:39:09.195879Z","updated_at":"2026-11-02T15:53:53.865042Z"},{"id":"SUSE-SU-2023:4183-1","title":"Security update for xen","description":"This update for xen fixes the following issues:\n\n- CVE-2023-34323: Fixed a potential crash in C Xenstored due to an\n  incorrect assertion (XSA-440) (bsc#1215744).\n- CVE-2023-34326: Fixed a missing IOMMU TLB flush on x86 AMD systems\n  with IOMMU hardware and PCI passthrough enabled (XSA-442)\n  (bsc#1215746).\n- CVE-2023-34325: Fixed multiple parsing issues in libfsimage\n  (XSA-443) (bsc#1215747).\n- CVE-2023-34327, CVE-2023-34328: Fixed multiple issues with AMD x86\n  debugging functionality for guests (XSA-444) (bsc#1215748).\n","status":"published","published":"2023-10-24T14:52:38Z","modified":"2026-02-04T03:54:36.916952Z","updated_at":"2026-11-02T15:53:53.865042Z"},{"id":"SUSE-SU-2023:4184-1","title":"Security update for xen","description":"This update for xen fixes the following issues:\n\n- CVE-2023-34323: Fixed a potential crash in C Xenstored due to an\n  incorrect assertion (XSA-440) (bsc#1215744).\n- CVE-2023-34326: Fixed a missing IOMMU TLB flush on x86 AMD systems\n  with IOMMU hardware and PCI passthrough enabled (XSA-442)\n  (bsc#1215746).\n- CVE-2023-34325: Fixed multiple parsing issues in libfsimage\n  (XSA-443) (bsc#1215747).\n- CVE-2023-34327, CVE-2023-34328: Fixed multiple issues with AMD x86\n  debugging functionality for guests (XSA-444) (bsc#1215748).\n","status":"published","published":"2023-10-24T14:52:50Z","modified":"2026-02-04T03:43:48.089395Z","updated_at":"2026-11-02T15:53:53.865042Z"},{"id":"SUSE-SU-2023:4185-1","title":"Security update for xen","description":"This update for xen fixes the following issues:\n\n- CVE-2023-34323: Fixed a potential crash in C Xenstored due to an\n  incorrect assertion (XSA-440) (bsc#1215744).\n- CVE-2023-34326: Fixed a missing IOMMU TLB flush on x86 AMD systems\n  with IOMMU hardware and PCI passthrough enabled (XSA-442)\n  (bsc#1215746).\n- CVE-2023-34325: Fixed multiple parsing issues in libfsimage\n  (XSA-443) (bsc#1215747).\n- CVE-2023-34327, CVE-2023-34328: Fixed multiple issues with AMD x86\n  debugging functionality for guests (XSA-444) (bsc#1215748).\n","status":"published","published":"2023-10-24T14:53:12Z","modified":"2026-02-04T03:25:29.836892Z","updated_at":"2026-11-02T15:53:53.865042Z"}]}}