{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2023-34320", "assignerOrgId": "23aa2041-22e1-471f-9209-9b7396fa234f", "state": "PUBLISHED", "assignerShortName": "XEN", "dateReserved": "2023-06-01T10:44:17.064Z", "datePublished": "2023-12-08T20:54:06.993Z", "dateUpdated": "2025-11-04T19:16:33.356Z"}, "containers": {"cna": {"title": "arm: Guests can trigger a deadlock on Cortex-A77", "datePublic": "2023-08-01T14:44:00.000Z", "descriptions": [{"lang": "en", "value": "Cortex-A77 cores (r0p0 and r1p0) are affected by erratum 1508412\nwhere software, under certain circumstances, could deadlock a core\ndue to the execution of either a load to device or non-cacheable memory,\nand either a store exclusive or register read of the Physical\nAddress Register (PAR_EL1) in close proximity.\n"}], "impacts": [{"descriptions": [{"lang": "en", "value": "A (malicious) guest that doesn't include the workaround for erratum\n1508412 could deadlock the core. This will ultimately result to\na deadlock of the system.\n"}]}], "affected": [{"defaultStatus": "unknown", "product": "Xen", "vendor": "Xen", "versions": [{"status": "unknown", "version": "consult Xen advisory XSA-436"}]}], "configurations": [{"lang": "en", "value": "Systems running all version of Xen are affected.\n\nThis bug is specific to Arm Cortex-A77 cores r0p0 and r1p0.\n"}], "workarounds": [{"lang": "en", "value": "There are no known mitigations.\n"}], "references": [{"url": "https://xenbits.xenproject.org/xsa/advisory-436.html"}], "providerMetadata": {"orgId": "23aa2041-22e1-471f-9209-9b7396fa234f", "shortName": "XEN", "dateUpdated": "2023-12-08T20:54:06.993Z"}}, "adp": [{"title": "CVE Program Container", "references": [{"url": "https://xenbits.xenproject.org/xsa/advisory-436.html", "tags": ["x_transferred"]}, {"url": "http://xenbits.xen.org/xsa/advisory-436.html"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-04T19:16:33.356Z"}}]}}

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