{"api_version":"1","generated_at":"2026-04-22T21:40:02+00:00","cve":"CVE-2022-42331","urls":{"html":"https://cve.report/CVE-2022-42331","api":"https://cve.report/api/cve/CVE-2022-42331.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2022-42331","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2022-42331"},"summary":{"title":"CVE-2022-42331","description":"x86: speculative vulnerability in 32bit SYSCALL path Due to an oversight in the very original Spectre/Meltdown security work (XSA-254), one entrypath performs its speculation-safety actions too late. In some configurations, there is an unprotected RET instruction which can be attacked with a variety of speculative attacks.","state":"PUBLIC","assigner":"security@xen.org","published_at":"2023-03-21 13:15:00","updated_at":"2024-02-04 08:15:00"},"problem_types":["NVD-CWE-noinfo"],"metrics":[],"references":[{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5L6PM4RE7MUE6OWA32ZVOXCP235RM2TM/","name":"FEDORA-2023-da8315e641","refsource":"FEDORA","tags":[],"title":"[SECURITY] Fedora 37 Update: xen-4.16.3-4.fc37 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/APBMS2Q6746AXAFAITNJMGBNFGNMVLWR/","name":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/APBMS2Q6746AXAFAITNJMGBNFGNMVLWR/","refsource":"MISC","tags":[],"title":"[SECURITY] Fedora 38 Update: xen-4.17.0-8.fc38 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"http://www.openwall.com/lists/oss-security/2023/03/21/3","name":"[oss-security] 20230321 Xen Security Advisory 429 v3 (CVE-2022-42331) - x86: speculative vulnerability in 32bit SYSCALL path","refsource":"MLIST","tags":[],"title":"oss-security - Xen Security Advisory 429 v3 (CVE-2022-42331) - x86: speculative\n vulnerability in 32bit SYSCALL path","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://security.gentoo.org/glsa/202402-07","name":"https://security.gentoo.org/glsa/202402-07","refsource":"","tags":[],"title":"Xen: Multiple Vulnerabilities (GLSA 202402-07) — Gentoo security","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/APBMS2Q6746AXAFAITNJMGBNFGNMVLWR/","name":"FEDORA-2023-703f133eb3","refsource":"FEDORA","tags":[],"title":"[SECURITY] Fedora 38 Update: xen-4.17.0-8.fc38 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://xenbits.xenproject.org/xsa/advisory-429.txt","name":"https://xenbits.xenproject.org/xsa/advisory-429.txt","refsource":"MISC","tags":[],"title":"","mime":"text/plain","httpstatus":"200","archivestatus":"404"},{"url":"http://xenbits.xen.org/xsa/advisory-429.html","name":"http://xenbits.xen.org/xsa/advisory-429.html","refsource":"CONFIRM","tags":[],"title":"XSA-429 - Xen Security Advisories","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5L6PM4RE7MUE6OWA32ZVOXCP235RM2TM/","name":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5L6PM4RE7MUE6OWA32ZVOXCP235RM2TM/","refsource":"MISC","tags":[],"title":"[SECURITY] Fedora 37 Update: xen-4.16.3-4.fc37 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.debian.org/security/2023/dsa-5378","name":"DSA-5378","refsource":"DEBIAN","tags":[],"title":"Debian -- Security Information -- DSA-5378-1 xen","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.cve.org/CVERecord?id=CVE-2022-42331","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-42331","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2022","cve_id":"42331","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"fedoraproject","cpe5":"fedora","cpe6":"37","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2022","cve_id":"42331","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"fedoraproject","cpe5":"fedora","cpe6":"38","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2022","cve_id":"42331","vulnerable":"1","versionEndIncluding":"4.17.0","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"xen","cpe5":"xen","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"x86","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[{"cve":"CVE-2022-42331","qid":"181654","title":"Debian Security Update for xen (DSA 5378-1)"},{"cve":"CVE-2022-42331","qid":"183525","title":"Debian Security Update for xen (CVE-2022-42331)"},{"cve":"CVE-2022-42331","qid":"283819","title":"Fedora Security Update for xen (FEDORA-2023-da8315e641)"},{"cve":"CVE-2022-42331","qid":"283862","title":"Fedora Security Update for xen (FEDORA-2023-04b5338dd0)"},{"cve":"CVE-2022-42331","qid":"284230","title":"Fedora Security Update for xen (FEDORA-2023-703f133eb3)"},{"cve":"CVE-2022-42331","qid":"502992","title":"Alpine Linux Security Update for xen"},{"cve":"CVE-2022-42331","qid":"503145","title":"Alpine Linux Security Update for xen"},{"cve":"CVE-2022-42331","qid":"505966","title":"Alpine Linux Security Update for xen"},{"cve":"CVE-2022-42331","qid":"710858","title":"Gentoo Linux Xen Multiple Vulnerabilities (GLSA 202402-07)"},{"cve":"CVE-2022-42331","qid":"753820","title":"SUSE Enterprise Linux Security Update for xen (SUSE-SU-2023:0845-1)"},{"cve":"CVE-2022-42331","qid":"753822","title":"SUSE Enterprise Linux Security Update for xen (SUSE-SU-2023:0858-1)"},{"cve":"CVE-2022-42331","qid":"753825","title":"SUSE Enterprise Linux Security Update for xen (SUSE-SU-2023:0847-1)"},{"cve":"CVE-2022-42331","qid":"753827","title":"SUSE Enterprise Linux Security Update for xen (SUSE-SU-2023:0862-1)"},{"cve":"CVE-2022-42331","qid":"753833","title":"SUSE Enterprise Linux Security Update for xen (SUSE-SU-2023:0859-1)"}]},"source_records":{"cve_program":{"data_version":"4.0","data_type":"CVE","data_format":"MITRE","CVE_data_meta":{"ID":"CVE-2022-42331","ASSIGNER":"security@xen.org","STATE":"PUBLIC"},"description":{"description_data":[{"lang":"eng","value":"x86: speculative vulnerability in 32bit SYSCALL path Due to an oversight in the very original Spectre/Meltdown security work (XSA-254), one entrypath performs its speculation-safety actions too late. In some configurations, there is an unprotected RET instruction which can be attacked with a variety of speculative attacks."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"unknown"}]}]},"affects":{"vendor":{"vendor_data":[{"vendor_name":"Xen","product":{"product_data":[{"product_name":"xen","version":{"version_data":[{"version_value":"not down converted","x_cve_json_5_version_data":{"versions":[{"version":"consult Xen advisory XSA-429","status":"unknown"}]}}]}}]}}]}},"references":{"reference_data":[{"url":"https://xenbits.xenproject.org/xsa/advisory-429.txt","refsource":"MISC","name":"https://xenbits.xenproject.org/xsa/advisory-429.txt"},{"url":"https://www.debian.org/security/2023/dsa-5378","refsource":"MISC","name":"https://www.debian.org/security/2023/dsa-5378"},{"url":"http://www.openwall.com/lists/oss-security/2023/03/21/3","refsource":"MISC","name":"http://www.openwall.com/lists/oss-security/2023/03/21/3"},{"url":"http://xenbits.xen.org/xsa/advisory-429.html","refsource":"MISC","name":"http://xenbits.xen.org/xsa/advisory-429.html"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/APBMS2Q6746AXAFAITNJMGBNFGNMVLWR/","refsource":"MISC","name":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/APBMS2Q6746AXAFAITNJMGBNFGNMVLWR/"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5L6PM4RE7MUE6OWA32ZVOXCP235RM2TM/","refsource":"MISC","name":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5L6PM4RE7MUE6OWA32ZVOXCP235RM2TM/"}]},"credits":[{"lang":"en","value":"{'credit_data': {'description': {'description_data': [{'lang': 'eng', 'value': 'This issue was discovered by Andrew Cooper of XenServer.'}]}}}"}]},"nvd":{"publishedDate":"2023-03-21 13:15:00","lastModifiedDate":"2024-02-04 08:15:00","problem_types":["NVD-CWE-noinfo"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE","baseScore":5.5,"baseSeverity":"MEDIUM"},"exploitabilityScore":1.8,"impactScore":3.6}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:xen:xen:*:*:*:*:*:*:x86:*","versionStartIncluding":"4.5.0","versionEndIncluding":"4.17.0","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*","cpe_name":[]}]}]}},"legacy_mitre":{"record":null,"notes":[]}}}