{"metadata": {"vulnerability": "cve-2021-28703", "count": 39, "kinds": {"milestone": 9, "sighting": 1, "kev": 0, "other": 29}}, "data": [{"timestamp": "2021-03-18T00:00:00Z", "date_only": false, "value": "2021-03-18T00:00:00.000Z", "kind": "milestone", "label": "Reserved", "source": "cvelistv5", "record": "cve-2021-28703", "field": "cveMetadata.dateReserved"}, {"timestamp": "2021-11-23T23:00:00Z", "date_only": false, "value": "2021-11-23T23:00:00.000+00:00", "kind": "other", "label": "Advisory revision", "source": "csaf_certbund \u00b7 WID-SEC-W-2024-0281", "record": "WID-SEC-W-2024-0281", "field": "document.tracking.revision_history.0.date"}, {"timestamp": "2021-11-23T23:00:00Z", "date_only": false, "value": "2021-11-23T23:00:00.000+00:00", "kind": "milestone", "label": "Published", "source": "csaf_certbund \u00b7 WID-SEC-W-2024-0281", "record": "WID-SEC-W-2024-0281", "field": "document.tracking.initial_release_date"}, {"timestamp": "2021-11-23T23:00:00Z", "date_only": false, "value": 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"record": "SUSE-SU-2021:14848-1", "field": "document.tracking.generator.date"}, {"timestamp": "2021-12-01T15:57:08Z", "date_only": false, "value": "2021-12-01T15:57:08Z", "kind": "milestone", "label": "Published", "source": "csaf_suse \u00b7 SUSE-SU-2021:14848-1", "record": "SUSE-SU-2021:14848-1", "field": "document.tracking.initial_release_date"}, {"timestamp": "2021-12-01T23:00:00Z", "date_only": false, "value": "2021-12-01T23:00:00.000+00:00", "kind": "other", "label": "Advisory revision", "source": "csaf_certbund \u00b7 WID-SEC-W-2024-0281", "record": "WID-SEC-W-2024-0281", "field": "document.tracking.revision_history.2.date"}, {"timestamp": "2021-12-05T23:00:00Z", "date_only": false, "value": "2021-12-05T23:00:00.000+00:00", "kind": "other", "label": "Advisory revision", "source": "csaf_certbund \u00b7 WID-SEC-W-2024-0281", "record": "WID-SEC-W-2024-0281", "field": "document.tracking.revision_history.3.date"}, {"timestamp": "2021-12-06T23:00:00Z", "date_only": false, "value": "2021-12-06T23:00:00.000+00:00", "kind": "other", "label": "Advisory revision", "source": "csaf_certbund \u00b7 WID-SEC-W-2024-0281", "record": "WID-SEC-W-2024-0281", "field": "document.tracking.revision_history.4.date"}, {"timestamp": "2021-12-07T00:00:00Z", "date_only": false, "value": "2021-12-07T00:00:00.000Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "cve-2021-28703", "field": "cveMetadata.datePublished"}, {"timestamp": "2021-12-07T12:15:00Z", "date_only": false, "value": "2021-12-07T12:15:00Z", "kind": "other", "label": "Nvd published at", "source": "github \u00b7 GHSA-MJ29-93C5-P3PR", "record": "GHSA-MJ29-93C5-P3PR", "field": "database_specific.nvd_published_at"}, {"timestamp": "2021-12-07T12:15:00Z", "date_only": false, "value": "2021-12-07T12:15:00Z", "kind": "milestone", "label": "Published", "source": "osv_ubuntu \u00b7 UBUNTU-CVE-2021-28703", "record": "UBUNTU-CVE-2021-28703", "field": "published"}, {"timestamp": "2021-12-07T12:15:08.610Z", "date_only": false, "value": "2021-12-07T12:15:08.610", "kind": "milestone", "label": "Published", "source": "fkie_nvd \u00b7 FKIE_CVE-2021-28703", "record": "FKIE_CVE-2021-28703", "field": "published"}, {"timestamp": "2021-12-07T12:15:08.610Z", "date_only": false, "value": "2021-12-07T12:15:08.610", "kind": "milestone", "label": "Published", "source": "gsd \u00b7 GSD-2021-28703", "record": "GSD-2021-28703", "field": "namespaces.nvd.nist.gov.cve.published"}, {"timestamp": "2021-12-07T14:21:36Z", "date_only": false, "value": "2021-12-07T14:21:36.000000Z", "kind": "sighting", "label": "Seen", "source": "https://t.me/cibsecurity/33429", "record": "CVE-2021-28703", "field": "creation_timestamp", "uuid": "12d827c1-5711-43fd-900a-13c002152a0d", "content": "\u203c CVE-2021-28703 \u203c\n\ngrant table v2 status pages may remain accessible after de-allocation (take two) Guest get permitted access to certain Xen-owned pages of memory. The majority of such pages remain allocated / associated with a guest for its entire lifetime. Grant table v2 status pages, however, get de-allocated when a guest switched (back) from v2 to v1. The freeing of such pages requires that the hypervisor know where in the guest these pages were mapped. The hypervisor tracks only one use within guest space, but racing requests from the guest to insert mappings of these pages may result in any of them to become mapped in multiple locations. Upon switching back from v2 to v1, the guest would then retain access to a page that was freed and perhaps re-used for other purposes. This bug was fortuitously fixed by code cleanup in Xen 4.14, and backported to security-supported Xen branches as a prerequisite of the fix for XSA-378.\n\n\ud83d\udcd6 Read\n\nvia \"National Vulnerability Database\".", "url": "https://t.me/cibsecurity/33429"}, {"timestamp": "2021-12-07T23:00:00Z", "date_only": false, "value": "2021-12-07T23:00:00.000+00:00", "kind": "other", "label": "Advisory revision", "source": "csaf_certbund \u00b7 WID-SEC-W-2024-0281", "record": "WID-SEC-W-2024-0281", "field": "document.tracking.revision_history.5.date"}, {"timestamp": "2021-12-08T00:01:39Z", "date_only": false, "value": "2021-12-08T00:01:39Z", "kind": "milestone", "label": "Published", "source": "github \u00b7 GHSA-MJ29-93C5-P3PR", "record": "GHSA-MJ29-93C5-P3PR", "field": "published"}, {"timestamp": "2021-12-09T23:00:00Z", "date_only": false, "value": "2021-12-09T23:00:00.000+00:00", "kind": "other", "label": "Advisory revision", "source": "csaf_certbund \u00b7 WID-SEC-W-2024-0281", "record": "WID-SEC-W-2024-0281", "field": "document.tracking.revision_history.6.date"}, {"timestamp": "2022-01-10T23:00:00Z", "date_only": false, "value": "2022-01-10T23:00:00.000+00:00", "kind": "other", "label": "Advisory revision", "source": "csaf_certbund \u00b7 WID-SEC-W-2024-0281", "record": "WID-SEC-W-2024-0281", "field": "document.tracking.revision_history.7.date"}, {"timestamp": "2022-01-12T23:00:00Z", "date_only": false, "value": "2022-01-12T23:00:00.000+00:00", "kind": "other", "label": "Advisory revision", "source": "csaf_certbund \u00b7 WID-SEC-W-2024-0281", "record": "WID-SEC-W-2024-0281", "field": "document.tracking.revision_history.8.date"}, {"timestamp": "2023-12-13T01:23:29.438Z", "date_only": false, "value": "2023-12-13T01:23:29.438980Z", "kind": "other", "label": "Updated", "source": "gsd \u00b7 GSD-2021-28703", "record": "GSD-2021-28703", "field": "gsd.osvSchema.modified"}, {"timestamp": "2024-02-04T08:06:29.390Z", "date_only": false, "value": "2024-02-04T08:06:29.390Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / XEN", "record": "cve-2021-28703", "field": "containers.cna.providerMetadata.dateUpdated"}, {"timestamp": "2024-02-04T08:15:08.090Z", "date_only": false, "value": "2024-02-04T08:15:08.090", "kind": "other", "label": "Updated", "source": "gsd \u00b7 GSD-2021-28703", "record": "GSD-2021-28703", "field": "namespaces.nvd.nist.gov.cve.lastModified"}, {"timestamp": "2024-02-04T09:30:31Z", "date_only": false, "value": "2024-02-04T09:30:31Z", "kind": "other", "label": "Updated", "source": "github \u00b7 GHSA-MJ29-93C5-P3PR", "record": "GHSA-MJ29-93C5-P3PR", "field": "modified"}, {"timestamp": "2024-02-04T23:00:00Z", "date_only": false, "value": "2024-02-04T23:00:00.000+00:00", "kind": "other", "label": "Advisory revision", "source": "csaf_certbund \u00b7 WID-SEC-W-2024-0281", "record": "WID-SEC-W-2024-0281", "field": "document.tracking.revision_history.9.date"}, {"timestamp": "2024-02-04T23:00:00Z", "date_only": false, "value": "2024-02-04T23:00:00.000+00:00", "kind": "other", "label": "Updated", "source": "csaf_certbund \u00b7 WID-SEC-W-2024-0281", "record": "WID-SEC-W-2024-0281", "field": "document.tracking.current_release_date"}, {"timestamp": "2024-08-03T21:47:33.183Z", "date_only": false, "value": "2024-08-03T21:47:33.183Z", "kind": "other", "label": "Updated", "source": "cvelistv5", "record": "cve-2021-28703", "field": "cveMetadata.dateUpdated"}, {"timestamp": "2024-08-03T21:47:33.183Z", "date_only": false, "value": "2024-08-03T21:47:33.183Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / CVE", "record": "cve-2021-28703", "field": "containers.adp.0.providerMetadata.dateUpdated"}, {"timestamp": "2024-08-15T18:04:48.327Z", "date_only": false, "value": "2024-08-15T18:04:48.327+00:00", "kind": "other", "label": "Document generated", "source": "csaf_certbund \u00b7 WID-SEC-W-2024-0281", "record": "WID-SEC-W-2024-0281", "field": "document.tracking.generator.date"}, {"timestamp": "2026-06-17T03:46:50.183Z", "date_only": false, "value": "2026-06-17T03:46:50.183", "kind": "other", "label": "Updated", "source": "fkie_nvd \u00b7 FKIE_CVE-2021-28703", "record": "FKIE_CVE-2021-28703", "field": "lastModified"}, {"timestamp": "2026-09-20T13:55:46Z", "date_only": false, "value": "2026-09-20T13:55:46Z", "kind": "other", "label": "Advisory revision", "source": "csaf_suse \u00b7 SUSE-SU-2021:14848-1", "record": "SUSE-SU-2021:14848-1", "field": "document.tracking.revision_history.1.date"}, {"timestamp": "2026-09-20T13:55:46Z", "date_only": false, "value": "2026-09-20T13:55:46Z", "kind": "other", "label": "Updated", "source": "csaf_suse \u00b7 SUSE-SU-2021:14848-1", "record": "SUSE-SU-2021:14848-1", "field": "document.tracking.current_release_date"}, {"timestamp": "2026-10-17T09:08:17Z", "date_only": false, "value": "2026-10-17T09:08:17Z", "kind": "other", "label": "Updated", "source": "osv_ubuntu \u00b7 UBUNTU-CVE-2021-28703", "record": "UBUNTU-CVE-2021-28703", "field": "modified"}]}