{"id":"CVE-2022-42334","aliases":["ALPINE-CVE-2022-42334","DEBIAN-CVE-2022-42334","DSA-5378-1","EUVD-2022-45409","GHSA-v57p-c5gg-pq5v","SUSE-SU-2023:0845-1","SUSE-SU-2023:0847-1","SUSE-SU-2023:0848-1","SUSE-SU-2023:0848-2","SUSE-SU-2023:0858-1","SUSE-SU-2023:0859-1","SUSE-SU-2023:0862-1","UBUNTU-CVE-2022-42334"],"status":"published","title":"x86/HVM pinned cache attributes mis-handling T[his CNA information record relates to multiple...","description":"x86/HVM pinned cache attributes mis-handling T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] To allow cachability control for HVM guests with passed through devices, an interface exists to explicitly override defaults which would otherwise be put in place. While not exposed to the affected guests themselves, the interface specifically exists for domains controlling such guests. This interface may therefore be used by not fully privileged entities, e.g. qemu running deprivileged in Dom0 or qemu running in a so called stub-domain. With this exposure it is an issue that - the number of the such controlled regions was unbounded (CVE-2022-42333), - installation and removal of such regions was not properly serialized (CVE-2022-42334).","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.00267,"percentile":0.19042,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-770"],"published":"2023-03-21T00:00:00Z","modified":"2026-11-03T08:03:55Z","fixes":[{"ecosystem":"Alpine:v3.15","package":"xen","fixed_in":["4.15.5-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.16","package":"xen","fixed_in":["4.16.4-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.17","package":"xen","fixed_in":["4.16.4-r0"],"sources":["osv"]},{"ecosystem":"Debian:12","package":"xen","fixed_in":["4.17.0+74-g3eac216e6e-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"xen","fixed_in":["4.17.0+74-g3eac216e6e-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"xen","fixed_in":["4.17.0+74-g3eac216e6e-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Alpine:v3.15","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.11.0"},{"fixed":"4.15.5-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.16","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.11.0"},{"fixed":"4.16.4-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.17","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.11.0"},{"fixed":"4.16.4-r0"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.17.0+74-g3eac216e6e-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.17.0+74-g3eac216e6e-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.17.0+74-g3eac216e6e-1"}]}]},{"source":"osv","ecosystem":"Debian:11","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.14.5+94-ge49571868d-1"}]}],"versions":["4.14.2+25-gb6a8c4f72d-2","4.14.3+32-g9de3671772-1","4.14.3+32-g9de3671772-1~deb11u1","4.14.3-1","4.14.3-1~deb11u1","4.14.4+74-gd7b22226b5-1","4.14.5+24-g87d90d511c-1","4.14.5+86-g1c354767d5-1"],"bundled":5},{"source":"osv","ecosystem":"SUSE:Linux 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pinned cache attributes mis-handling T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] To allow cachability control for HVM guests with passed through devices, an interface exists to explicitly override defaults which would otherwise be put in place. While not exposed to the affected guests themselves, the interface specifically exists for domains controlling such guests. This interface may therefore be used by not fully privileged entities, e.g. qemu running deprivileged in Dom0 or qemu running in a so called stub-domain. With this exposure it is an issue that - the number of the such controlled regions was unbounded (CVE-2022-42333), - installation and removal of such regions was not properly serialized (CVE-2022-42334).","status":"published","published":"2023-03-21T00:00:00Z","modified":"2025-02-13T16:33:21.222Z","updated_at":"2026-11-02T14:34:27.640972Z"}],"euvd":[{"id":"EUVD-2022-45409","description":"x86/HVM pinned cache attributes mis-handling T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] To allow cachability control for HVM guests with passed through devices, an interface exists to explicitly override defaults which would otherwise be put in place. While not exposed to the affected guests themselves, the interface specifically exists for domains controlling such guests. This interface may therefore be used by not fully privileged entities, e.g. qemu running deprivileged in Dom0 or qemu running in a so called stub-domain. With this exposure it is an issue that - the number of the such controlled regions was unbounded (CVE-2022-42333), - installation and removal of such regions was not properly serialized (CVE-2022-42334).","status":"published","published":"2023-03-21T00:00:00Z","modified":"2025-02-13T16:33:21Z","updated_at":"2026-11-03T00:03:52.297177Z"}],"ghsa":[{"id":"GHSA-v57p-c5gg-pq5v","title":"x86/HVM pinned cache attributes mis-handling T[his CNA information record relates to multiple...","description":"x86/HVM pinned cache attributes mis-handling T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] To allow cachability control for HVM guests with passed through devices, an interface exists to explicitly override defaults which would otherwise be put in place. While not exposed to the affected guests themselves, the interface specifically exists for domains controlling such guests. This interface may therefore be used by not fully privileged entities, e.g. qemu running deprivileged in Dom0 or qemu running in a so called stub-domain. With this exposure it is an issue that - the number of the such controlled regions was unbounded (CVE-2022-42333), - installation and removal of such regions was not properly serialized (CVE-2022-42334).","status":"published","published":"2023-03-21T15:30:15Z","modified":"2024-02-13T05:08:19Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T14:55:36.780787Z"}],"nvd":[{"id":"CVE-2022-42334","description":"x86/HVM pinned cache attributes mis-handling T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] To allow cachability control for HVM guests with passed through devices, an interface exists to explicitly override defaults which would otherwise be put in place. While not exposed to the affected guests themselves, the interface specifically exists for domains controlling such guests. This interface may therefore be used by not fully privileged entities, e.g. qemu running deprivileged in Dom0 or qemu running in a so called stub-domain. With this exposure it is an issue that - the number of the such controlled regions was unbounded (CVE-2022-42333), - installation and removal of such regions was not properly serialized (CVE-2022-42334).","status":"published","published":"2023-03-21T13:15:12.08Z","modified":"2026-06-17T05:04:44.95Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H","level":"medium","assessor":"primary"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T14:07:37.020555Z"}],"osv":[{"id":"ALPINE-CVE-2022-42334","description":"x86/HVM pinned cache attributes mis-handling T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] To allow cachability control for HVM guests with passed through devices, an interface exists to explicitly override defaults which would otherwise be put in place. While not exposed to the affected guests themselves, the interface specifically exists for domains controlling such guests. This interface may therefore be used by not fully privileged entities, e.g. qemu running deprivileged in Dom0 or qemu running in a so called stub-domain. With this exposure it is an issue that - the number of the such controlled regions was unbounded (CVE-2022-42333), - installation and removal of such regions was not properly serialized (CVE-2022-42334).","status":"published","published":"2023-03-21T13:15:12.08Z","modified":"2026-11-03T07:18:33.750587129Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-03T07:50:38.973973Z"},{"id":"CVE-2022-42334","description":"x86/HVM pinned cache attributes mis-handling T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] To allow cachability control for HVM guests with passed through devices, an interface exists to explicitly override defaults which would otherwise be put in place. While not exposed to the affected guests themselves, the interface specifically exists for domains controlling such guests. This interface may therefore be used by not fully privileged entities, e.g. qemu running deprivileged in Dom0 or qemu running in a so called stub-domain. With this exposure it is an issue that - the number of the such controlled regions was unbounded (CVE-2022-42333), - installation and removal of such regions was not properly serialized (CVE-2022-42334).","status":"published","published":"2023-03-21T13:15:12.08Z","modified":"2026-03-15T22:44:15.808329Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:44:27.186787Z"},{"id":"DEBIAN-CVE-2022-42334","description":"x86/HVM pinned cache attributes mis-handling T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] To allow cachability control for HVM guests with passed through devices, an interface exists to explicitly override defaults which would otherwise be put in place. While not exposed to the affected guests themselves, the interface specifically exists for domains controlling such guests. This interface may therefore be used by not fully privileged entities, e.g. qemu running deprivileged in Dom0 or qemu running in a so called stub-domain. With this exposure it is an issue that - the number of the such controlled regions was unbounded (CVE-2022-42333), - installation and removal of such regions was not properly serialized (CVE-2022-42334).","status":"published","published":"2023-03-21T13:15:12.08Z","modified":"2026-11-03T08:03:55.374819087Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-03T08:23:34.488036Z"},{"id":"UBUNTU-CVE-2022-42334","description":"x86/HVM pinned cache attributes mis-handling T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] To allow cachability control for HVM guests with passed through devices, an interface exists to explicitly override defaults which would otherwise be put in place. While not exposed to the affected guests themselves, the interface specifically exists for domains controlling such guests. This interface may therefore be used by not fully privileged entities, e.g. qemu running deprivileged in Dom0 or qemu running in a so called stub-domain. With this exposure it is an issue that - the number of the such controlled regions was unbounded (CVE-2022-42333), - installation and removal of such regions was not properly serialized (CVE-2022-42334).","status":"published","published":"2023-03-21T13:15:00Z","modified":"2026-10-17T12:56:22.96663735Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T16:53:55.502114Z"},{"id":"DSA-5378-1","title":"xen - security update","status":"published","published":"2023-03-25T00:00:00Z","modified":"2026-03-09T02:09:24.431013Z","updated_at":"2026-11-02T15:46:17.543497Z"},{"id":"SUSE-SU-2023:0845-1","title":"Security update for xen","description":"This update for xen fixes the following issues:\n\n- CVE-2022-42332: Fixed use-after-free in x86 shadow plus log-dirty mode (bsc#1209017).\n- CVE-2022-42333,CVE-2022-42334: Fixed x86/HVM pinned cache attributes mis-handling (bsc#1209018).\n- CVE-2022-42331: Fixed speculative vulnerability in 32bit SYSCALL path on x86 (bsc#1209019).\n","status":"published","published":"2023-03-21T12:25:46Z","modified":"2026-02-04T02:57:42.845633Z","updated_at":"2026-11-02T15:53:52.350754Z"},{"id":"SUSE-SU-2023:0847-1","title":"Security update for xen","description":"This update for xen fixes the following issues:\n\n- CVE-2022-42332: Fixed use-after-free in x86 shadow plus log-dirty mode (bsc#1209017).\n- CVE-2022-42333,CVE-2022-42334: Fixed x86/HVM pinned cache attributes mis-handling (bsc#1209018).\n- CVE-2022-42331: Fixed speculative vulnerability in 32bit SYSCALL path on x86 (bsc#1209019).\n","status":"published","published":"2023-03-21T12:28:07Z","modified":"2026-02-04T03:31:09.904548Z","updated_at":"2026-11-02T15:53:52.350754Z"},{"id":"SUSE-SU-2023:0848-1","title":"Security update for xen","description":"This update for xen fixes the following issues:\n\n- CVE-2022-42332: Fixed use-after-free in x86 shadow plus log-dirty mode (bsc#1209017).\n- CVE-2022-42333,CVE-2022-42334: Fixed x86/HVM pinned cache attributes mis-handling (bsc#1209018).\n- CVE-2022-42331: Fixed speculative vulnerability in 32bit SYSCALL path on x86 (bsc#1209019).\n","status":"published","published":"2023-03-21T12:28:42Z","modified":"2025-05-02T04:33:41.864869Z","updated_at":"2026-11-02T15:53:52.350754Z"},{"id":"SUSE-SU-2023:0848-2","title":"Security update for xen","description":"This update for xen fixes the following issues:\n\n- CVE-2022-42332: Fixed use-after-free in x86 shadow plus log-dirty mode (bsc#1209017).\n- CVE-2022-42333,CVE-2022-42334: Fixed x86/HVM pinned cache attributes mis-handling (bsc#1209018).\n- CVE-2022-42331: Fixed speculative vulnerability in 32bit SYSCALL path on x86 (bsc#1209019).\n","status":"published","published":"2023-04-27T13:55:37Z","modified":"2025-05-02T04:33:41.927533Z","updated_at":"2026-11-02T15:53:52.350754Z"},{"id":"SUSE-SU-2023:0858-1","title":"Security update for xen","description":"This update for xen fixes the following issues:\n\n- CVE-2022-42332: Fixed use-after-free in x86 shadow plus log-dirty mode (bsc#1209017).\n- CVE-2022-42333,CVE-2022-42334: Fixed x86/HVM pinned cache attributes mis-handling (bsc#1209018).\n- CVE-2022-42331: Fixed speculative vulnerability in 32bit SYSCALL path on x86 (bsc#1209019).\n","status":"published","published":"2023-03-21T13:05:44Z","modified":"2026-02-04T04:04:10.464479Z","updated_at":"2026-11-02T15:53:52.350754Z"},{"id":"SUSE-SU-2023:0859-1","title":"Security update for xen","description":"This update for xen fixes the following issues:\n\n- CVE-2022-42332: Fixed use-after-free in x86 shadow plus log-dirty mode (bsc#1209017).\n- CVE-2022-42333,CVE-2022-42334: Fixed x86/HVM pinned cache attributes mis-handling (bsc#1209018).\n- CVE-2022-42331: Fixed speculative vulnerability in 32bit SYSCALL path on x86 (bsc#1209019).\n","status":"published","published":"2023-03-21T13:16:00Z","modified":"2026-02-04T04:16:14.702522Z","updated_at":"2026-11-02T15:53:52.350754Z"},{"id":"SUSE-SU-2023:0862-1","title":"Security update for xen","description":"This update for xen fixes the following issues:\n\n- CVE-2022-42332: Fixed use-after-free in x86 shadow plus log-dirty mode (bsc#1209017).\n- CVE-2022-42333,CVE-2022-42334: Fixed x86/HVM pinned cache attributes mis-handling (bsc#1209018).\n- CVE-2022-42331: Fixed speculative vulnerability in 32bit SYSCALL path on x86 (bsc#1209019).\n","status":"published","published":"2023-03-21T13:55:50Z","modified":"2026-02-04T03:25:43.003254Z","updated_at":"2026-11-02T15:53:52.350754Z"}]}}