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"initial_release_date"}, {"timestamp": "2023-07-28T00:00:00Z", "date_only": false, "value": "2023-07-28T00:00:00.000000", "kind": "other", "label": "Revision date", "source": "certfr_avis \u00b7 CERTFR-2023-AVI-0599", "record": "CERTFR-2023-AVI-0599", "field": "revisions.0.revision_date"}, {"timestamp": "2023-12-03T00:00:57Z", "date_only": false, "value": "2023-12-03T00:00:57.000000Z", "kind": "sighting", "label": "Seen", "source": "https://t.me/arpsyndicate/898", "record": "CVE-2023-2612", "field": "creation_timestamp", "uuid": "d16e9d59-1b43-4b58-b2a4-0cb9062a4d52", "content": "#ExploitObserverAlert\n\nCVE-2023-2612\n\nDESCRIPTION: Exploit Observer has 2 entries related to CVE-2023-2612. Jean-Baptiste Cayrou discovered that the shiftfs file system in the Ubuntu Linux kernel contained a race condition when handling inode locking in some situations. A local attacker could use this to cause a denial of service (kernel deadlock).\n\nFIRST-EPSS: 0.000420000\nNVD-IS: 3.6\nNVD-ES: 1.0", "url": "https://t.me/arpsyndicate/898"}, {"timestamp": "2023-12-13T01:20:32.166Z", "date_only": false, "value": "2023-12-13T01:20:32.166330Z", "kind": "other", "label": "Updated", "source": "gsd \u00b7 GSD-2023-2612", "record": "GSD-2023-2612", "field": "gsd.osvSchema.modified"}, {"timestamp": "2024-01-12T16:15:15Z", "date_only": false, "value": "2024-01-12T16:15:15.000000Z", "kind": "sighting", "label": "Published proof of concept", "source": "https://t.me/CyberSecurityTechnologies/9772", "record": "CVE-2023-2612", "field": "creation_timestamp", "uuid": "3319e6e6-367d-4a07-ab44-8914c23ed98f", "content": "#Threat_Research\n\"Ubuntu Shiftfs: Unbalanced Unlock Exploitation Attempt (CVE-2023-2612)\",  2023.", "url": "https://t.me/CyberSecurityTechnologies/9772"}, {"timestamp": "2024-04-04T04:24:52Z", "date_only": false, "value": "2024-04-04T04:24:52Z", "kind": "other", "label": "Updated", "source": "github \u00b7 GHSA-R34W-XRJ9-CPVR", "record": "GHSA-R34W-XRJ9-CPVR", "field": "modified"}, {"timestamp": "2024-08-02T06:26:09.708Z", "date_only": false, "value": "2024-08-02T06:26:09.708Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / CVE", "record": "cve-2023-2612", "field": "containers.adp.0.providerMetadata.dateUpdated"}, {"timestamp": "2024-08-16T09:01:27Z", "date_only": false, "value": "2024-08-16T09:01:27.000000Z", "kind": "sighting", "label": "Published proof of concept", "source": "https://t.me/Rootsec_2/2507", "record": "CVE-2023-2612", "field": "creation_timestamp", "uuid": "affc5efe-80bb-4f5a-acc2-9e280bf0e6de", "content": "#Threat_Research\n\"Ubuntu Shiftfs: Unbalanced Unlock Exploitation Attempt (CVE-2023-2612)\",  2023.", "url": "https://t.me/Rootsec_2/2507"}, {"timestamp": "2025-01-10T16:47:19.729Z", "date_only": false, "value": "2025-01-10T16:47:19.729691Z", "kind": "other", "label": "Recorded", "source": "cvelistv5 / CISA-ADP", "record": "cve-2023-2612", "field": "containers.adp.1.metrics.0.other.content.timestamp"}, {"timestamp": "2025-01-10T16:47:19.729Z", "date_only": false, "value": "2025-01-10T16:47:19.729691Z", "kind": "other", "label": "Recorded", "source": "fkie_nvd \u00b7 FKIE_CVE-2023-2612", "record": "FKIE_CVE-2023-2612", "field": "metrics.ssvcV203.0.ssvcData.timestamp"}, {"timestamp": "2025-01-10T16:48:03.535Z", "date_only": false, "value": "2025-01-10T16:48:03.535Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / CISA-ADP", "record": "cve-2023-2612", "field": "containers.adp.1.providerMetadata.dateUpdated"}, {"timestamp": "2025-01-10T17:03:53Z", "date_only": false, "value": "2025-01-10T17:03:53.000000Z", "kind": "sighting", "label": "Seen", "source": "https://t.me/DarkWebInformer_CVEAlerts/1173", "record": "CVE-2023-2612", "field": "creation_timestamp", "uuid": "76857892-3eda-4de7-847c-905b7780137b", "content": "\ud83d\udd17 DarkWebInformer.com - Cyber Threat Intelligence\n\ud83d\udccc CVE ID: CVE-2023-2612\n\ud83d\udd39 Description: Jean-Baptiste Cayrou discovered that the shiftfs file system in the Ubuntu Linux kernel contained a race condition when handling inode locking in some situations. A local attacker could use this to cause a denial of service (kernel deadlock).\n\ud83d\udccf Published: 2023-05-30T23:12:29.867Z\n\ud83d\udccf Modified: 2025-01-10T16:48:03.535Z\n\ud83d\udd17 References:\n1. https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/kinetic/commit/?id=02b47547824b1cd0d55c6744f91886f04de8947e\n2. https://ubuntu.com/security/CVE-2023-2612\n3. https://ubuntu.com/security/notices/USN-6122-1\n4. https://ubuntu.com/security/notices/USN-6123-1\n5. https://ubuntu.com/security/notices/USN-6124-1\n6. https://ubuntu.com/security/notices/USN-6127-1\n7. http://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.html", "url": "https://t.me/DarkWebInformer_CVEAlerts/1173"}, {"timestamp": "2025-02-13T16:44:50.457Z", "date_only": false, "value": "2025-02-13T16:44:50.457Z", "kind": "other", "label": "Updated", "source": "cvelistv5", "record": "cve-2023-2612", "field": "cveMetadata.dateUpdated"}, {"timestamp": "2026-06-17T05:53:00.730Z", "date_only": false, "value": "2026-06-17T05:53:00.730", "kind": "other", "label": "Updated", "source": "fkie_nvd \u00b7 FKIE_CVE-2023-2612", "record": "FKIE_CVE-2023-2612", "field": "lastModified"}, {"timestamp": "2026-07-29T12:02:19.371Z", "date_only": false, "value": "2026-07-29T12:02:19.371969Z", "kind": "sighting", "label": "Seen", "source": "https://t.me/reverseame/4241", "record": "CVE-2023-2612", "field": "creation_timestamp", "uuid": "f65df997-4ce0-4e97-8a0d-9e7299f05531", "url": "https://t.me/reverseame/4241"}, {"timestamp": "2026-07-30T00:02:23.088Z", "date_only": false, "value": "2026-07-30T00:02:23.088056Z", "kind": "sighting", "label": "Seen", "source": "https://t.me/reverseame/4241", "record": "CVE-2023-2612", "field": "creation_timestamp", "uuid": "18d6a7e8-7774-467a-acc6-c0d0d6a275b9", "url": "https://t.me/reverseame/4241"}, {"timestamp": "2026-08-02T09:00:04.701Z", "date_only": false, "value": "2026-08-02T09:00:04.701698Z", "kind": "sighting", "label": "Published proof of concept", "source": "https://t.me/reverseame/4241", "record": "CVE-2023-2612", "field": "creation_timestamp", "uuid": "57a9bf23-fe9d-417c-8ad6-329337e0c206", "url": "https://t.me/reverseame/4241"}, {"timestamp": "2026-08-03T02:07:16.172Z", "date_only": false, "value": "2026-08-03T02:07:16.172001Z", "kind": "sighting", "label": "Published proof of concept", "source": "https://t.me/reverseame/4241", "record": "CVE-2023-2612", "field": "creation_timestamp", "uuid": "df686066-e1cb-4be6-9917-6913b7b52998", "url": "https://t.me/reverseame/4241"}, {"timestamp": "2026-09-30T14:39:43Z", "date_only": false, "value": "2026-09-30T14:39:43Z", "kind": "other", "label": "Updated", "source": "osv_ubuntu \u00b7 UBUNTU-CVE-2023-2612", "record": "UBUNTU-CVE-2023-2612", "field": "modified"}]}