{"metadata": {"vulnerability": "CVE-2023-3640", "count": 43, "kinds": {"milestone": 10, "sighting": 8, "kev": 0, "other": 25}, "linked_omitted": 1}, "data": [{"timestamp": "2023-06-23T00:00:00Z", "date_only": false, "value": "2023-06-23T00:00:00.000Z", "kind": "other", "label": "Made public", "source": "cvelistv5 / redhat", "record": "CVE-2023-3640", "field": "containers.cna.datePublic", "metric_role": "disclosure", "metric_basis": "recorded_event"}, {"timestamp": "2023-06-23T00:00:00Z", "date_only": false, "value": "2023-06-23T00:00:00.000Z", "kind": "other", "label": "Timeline", "source": "cvelistv5 / redhat", "record": "CVE-2023-3640", "field": "containers.cna.timeline.1.time", "text": "Made public."}, {"timestamp": "2023-06-26T00:00:00Z", "date_only": false, "value": "2023-06-26T00:00:00.000Z", "kind": "other", "label": "Timeline", "source": "cvelistv5 / redhat", "record": "CVE-2023-3640", "field": "containers.cna.timeline.0.time", "text": "Reported to Red Hat."}, {"timestamp": "2023-07-12T15:37:45.552Z", "date_only": false, "value": "2023-07-12T15:37:45.552Z", "kind": "milestone", "label": "Reserved", "source": "cvelistv5", "record": "CVE-2023-3640", "field": "cveMetadata.dateReserved"}, {"timestamp": "2023-07-12T17:29:04Z", "date_only": false, "value": "2023-07-12T17:29:04.000000Z", "kind": "sighting", "label": "Published proof of concept", "source": "https://t.me/GithubRedTeam/4740", "record": "CVE-2023-3640", "field": "creation_timestamp", "uuid": "377286be-0130-4353-815c-246409e79e2d", "content": "GitHub\u76d1\u63a7\u6d88\u606f\u63d0\u9192\uff01\uff01\uff01\n\n\u66f4\u65b0\u4e86\uff1aCVE-2023\n\u63cf\u8ff0\uff1aSCTF 2023 kernel pwn && CVE-2023-3640\nURL\uff1ahttps://github.com/pray77/SCTF2023_kernelpwn-CVE-2023-3640\n\n\u6807\u7b7e\uff1a#CVE-2023", "url": "https://t.me/GithubRedTeam/4740", "metric_role": "exploit_publication", "metric_basis": "sighting_report"}, {"timestamp": "2023-07-12T17:42:07Z", "date_only": false, "value": "2023-07-12T17:42:07.000000Z", "kind": "sighting", "label": "Published proof of concept", "source": "https://t.me/GithubRedTeam/4741", "record": "CVE-2023-3640", "field": "creation_timestamp", "uuid": "ae7f1a4e-fb47-46ec-be0e-8a7469dd59b1", "content": "GitHub\u76d1\u63a7\u6d88\u606f\u63d0\u9192\uff01\uff01\uff01\n\n\u66f4\u65b0\u4e86\uff1aCVE-2023\n\u63cf\u8ff0\uff1aSCTF 2023 kernel pwn && CVE-2023-3640\nURL\uff1ahttps://github.com/pray77/CVE-2023-3640\n\n\u6807\u7b7e\uff1a#CVE-2023", "url": "https://t.me/GithubRedTeam/4741", "metric_role": "exploit_publication", "metric_basis": "sighting_report"}, {"timestamp": "2023-07-24T15:19:29.983Z", "date_only": false, "value": "2023-07-24T15:19:29.983Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2023-3640", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, {"timestamp": "2023-07-24T16:15:00Z", "date_only": false, "value": "2023-07-24T16:15:00Z", "kind": "milestone", "label": "Published", "source": "osv_ubuntu \u00b7 UBUNTU-CVE-2023-3640", "record": "UBUNTU-CVE-2023-3640", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": "2023-07-24T16:15:00Z", "date_only": false, "value": "2023-07-24T16:15Z", "kind": "other", "label": "Published Date", "source": "gsd \u00b7 GSD-2023-3640", "record": "GSD-2023-3640", "field": "namespaces.nvd.nist.gov.publishedDate", "linked_record": true}, {"timestamp": "2023-07-24T16:15:13Z", "date_only": false, "value": "2023-07-24T16:15:13Z", "kind": "other", "label": "Nvd published at", "source": "github \u00b7 GHSA-G854-MV2R-2R5H", "record": "GHSA-G854-MV2R-2R5H", "field": "database_specific.nvd_published_at", "linked_record": true}, {"timestamp": "2023-07-24T16:15:13.063Z", "date_only": false, "value": "2023-07-24T16:15:13.063", "kind": "milestone", "label": "Published", "source": "fkie_nvd \u00b7 FKIE_CVE-2023-3640", "record": "FKIE_CVE-2023-3640", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": "2023-07-24T18:30:44Z", "date_only": false, "value": "2023-07-24T18:30:44Z", "kind": "milestone", "label": "Published", "source": "github \u00b7 GHSA-G854-MV2R-2R5H", "record": "GHSA-G854-MV2R-2R5H", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": "2023-07-24T20:26:12Z", "date_only": false, "value": "2023-07-24T20:26:12.000000Z", "kind": "sighting", "label": "Seen", "source": "https://t.me/cibsecurity/67157", "record": "CVE-2023-3640", "field": "creation_timestamp", "uuid": "9e2ee3bb-65a9-48ae-8291-2d5214bc10cd", "content": "\u203c CVE-2023-3640 \u203c\n\nA possible unauthorized memory access flaw was found in the Linux kernel's cpu_entry_area mapping of X86 CPU data to memory, where a user may guess the location of exception stacks or other important data. Based on the previous CVE-2023-0597, the 'Randomize per-cpu entry area' feature was implemented in /arch/x86/mm/cpu_entry_area.c, which works through the init_cea_offsets() function when KASLR is enabled. However, despite this feature, there is still a risk of per-cpu entry area leaks. This issue could allow a local user to gain access to some important data with memory in an expected location and potentially escalate their privileges on the system.\n\n\ud83d\udcd6 Read\n\nvia \"National Vulnerability Database\".", "url": "https://t.me/cibsecurity/67157"}, {"timestamp": "2023-07-24T22:00:00Z", "date_only": false, "value": "2023-07-24T22:00:00.000+00:00", "kind": "other", "label": "Advisory revision", "source": "csaf_certbund \u00b7 WID-SEC-W-2023-1871", "record": "WID-SEC-W-2023-1871", "field": "document.tracking.revision_history.0.date", "linked_record": true}, {"timestamp": "2023-07-24T22:00:00Z", "date_only": false, "value": "2023-07-24T22:00:00.000+00:00", "kind": "milestone", "label": "Published", "source": "csaf_certbund \u00b7 WID-SEC-W-2023-1871", "record": "WID-SEC-W-2023-1871", "field": "document.tracking.initial_release_date", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": "2023-07-24T22:00:00Z", "date_only": false, "value": "2023-07-24T22:00:00.000+00:00", "kind": "other", "label": "Release date", "source": "csaf_certbund \u00b7 WID-SEC-W-2023-1871", "record": "WID-SEC-W-2023-1871", "field": "vulnerabilities.0.release_date", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": "2023-08-02T13:49:00Z", "date_only": false, "value": "2023-08-02T13:49Z", "kind": "other", "label": "Last Modified Date", "source": "gsd \u00b7 GSD-2023-3640", "record": "GSD-2023-3640", "field": "namespaces.nvd.nist.gov.lastModifiedDate", "linked_record": true}, {"timestamp": "2023-11-29T15:54:06Z", "date_only": false, "value": "2023-11-29T15:54:06.000000Z", "kind": "sighting", "label": "Seen", "source": "https://t.me/arpsyndicate/763", "record": "CVE-2023-3640", "field": "creation_timestamp", "uuid": "b836132e-5b5f-4b3a-9560-03a5a94eb58b", "content": "#ExploitObserverAlert\n\nCVE-2023-3640\n\nDESCRIPTION: Exploit Observer has 1 entries related to CVE-2023-3640. A possible unauthorized memory access flaw was found in the Linux kernel's cpu_entry_area mapping of X86 CPU data to memory, where a user may guess the location of exception stacks or other important data. Based on the previous CVE-2023-0597, the 'Randomize per-cpu entry area' feature was implemented in /arch/x86/mm/cpu_entry_area.c, which works through the init_cea_offsets() function when KASLR is enabled. However, despite this feature, there is still a risk of per-cpu entry area leaks. This issue could allow a local user to gain access to some important data with memory in an expected location and potentially escalate their privileges on the system.\n\nFIRST-EPSS: 0.000420000\nNVD-IS: 5.9\nNVD-ES: 1.8", "url": "https://t.me/arpsyndicate/763"}, {"timestamp": "2023-12-13T01:20:54.413Z", "date_only": false, "value": "2023-12-13T01:20:54.413971Z", "kind": "other", "label": "Updated", "source": "gsd \u00b7 GSD-2023-3640", "record": "GSD-2023-3640", "field": "gsd.osvSchema.modified", "linked_record": true}, {"timestamp": "2024-08-02T07:01:57.304Z", "date_only": false, "value": "2024-08-02T07:01:57.304Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / CVE", "record": "CVE-2023-3640", "field": "containers.adp.0.providerMetadata.dateUpdated"}, {"timestamp": "2024-12-16T23:00:00Z", "date_only": false, "value": "2024-12-16T23:00:00.000+00:00", "kind": "other", "label": "Advisory revision", "source": "csaf_certbund \u00b7 WID-SEC-W-2023-1871", "record": "WID-SEC-W-2023-1871", "field": "document.tracking.revision_history.1.date", "linked_record": true}, {"timestamp": "2024-12-16T23:00:00Z", "date_only": false, "value": "2024-12-16T23:00:00.000+00:00", "kind": "other", "label": "Updated", "source": "csaf_certbund \u00b7 WID-SEC-W-2023-1871", "record": "WID-SEC-W-2023-1871", "field": "document.tracking.current_release_date", "linked_record": true}, {"timestamp": "2024-12-17T09:16:13.639Z", "date_only": false, "value": "2024-12-17T09:16:13.639+00:00", "kind": "other", "label": "Document generated", "source": "csaf_certbund \u00b7 WID-SEC-W-2023-1871", "record": "WID-SEC-W-2023-1871", "field": "document.tracking.generator.date", "linked_record": true}, {"timestamp": "2025-03-05T18:36:10.948Z", "date_only": false, "value": "2025-03-05T18:36:10.948159Z", "kind": "other", "label": "Recorded", "source": "cvelistv5 / CISA-ADP", "record": "CVE-2023-3640", "field": "containers.adp.1.metrics.0.other.content.timestamp"}, {"timestamp": "2025-03-05T18:36:10.948Z", "date_only": false, "value": "2025-03-05T18:36:10.948159Z", "kind": "other", "label": "Recorded", "source": "fkie_nvd \u00b7 FKIE_CVE-2023-3640", "record": "FKIE_CVE-2023-3640", "field": "metrics.ssvcV203.0.ssvcData.timestamp", "linked_record": true}, {"timestamp": "2025-03-05T18:47:35.627Z", "date_only": false, "value": "2025-03-05T18:47:35.627Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / CISA-ADP", "record": "CVE-2023-3640", "field": "containers.adp.1.providerMetadata.dateUpdated"}, {"timestamp": "2025-04-15T11:55:55Z", "date_only": false, "value": "2025-04-15T11:55:55.000000Z", "kind": "sighting", "label": "Seen", "source": "https://t.me/DarkWebInformer_CVEAlerts/11782", "record": "CVE-2023-3640", "field": "creation_timestamp", "uuid": "110b91e6-25c8-4a9d-b618-4747de7a30fe", "content": "\ud83d\udd17 DarkWebInformer.com - Cyber Threat Intelligence\n\ud83d\udccc CVE ID: CVE-2023-3640\n\ud83d\udd25 CVSS Score: 7 (cvssV3_1, Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H)\n\ud83d\udd39 Description: A possible unauthorized memory access flaw was found in the Linux kernel's cpu_entry_area mapping of X86 CPU data to memory, where a user may guess the location of exception stacks or other important data. Based on the previous CVE-2023-0597, the 'Randomize per-cpu entry area' feature was implemented in /arch/x86/mm/cpu_entry_area.c, which works through the init_cea_offsets() function when KASLR is enabled. However, despite this feature, there is still a risk of per-cpu entry area leaks. 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