CVE-2022-33745

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://xenbits.xenproject.org/xsa/advisory-408.txt", "name": "https://xenbits.xenproject.org/xsa/advisory-408.txt", "tags": [], "refsource": "MISC"}, {"url": "http://xenbits.xen.org/xsa/advisory-408.html", "name": "http://xenbits.xen.org/xsa/advisory-408.html", "tags": [], "refsource": "CONFIRM"}, {"url": "http://www.openwall.com/lists/oss-security/2022/07/26/2", "name": "[oss-security] 20220726 Xen Security Advisory 408 v2 (CVE-2022-33745) - insufficient TLB flush for x86 PV guests in shadow mode", "tags": [], "refsource": "MLIST"}, {"url": "http://www.openwall.com/lists/oss-security/2022/07/26/3", "name": "[oss-security] 20220726 Xen Security Advisory 408 v3 (CVE-2022-33745) - insufficient TLB flush for x86 PV guests in shadow mode", "tags": [], "refsource": "MLIST"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "insufficient TLB flush for x86 PV guests in shadow mode For migration as well as to work around kernels unaware of L1TF (see XSA-273), PV guests may be run in shadow paging mode. To address XSA-401, code was moved inside a function in Xen. This code movement missed a variable changing meaning / value between old and new code positions. The now wrong use of the variable did lead to a wrong TLB flush condition, omitting flushes where such are necessary."}]}, "problemtype": {"problemtype_data": [{"description": []}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2022-33745", "ASSIGNER": "security@xen.org"}}, "impact": {}, "publishedDate": "2022-07-26T13:15Z", "configurations": {"nodes": [], "CVE_data_version": "4.0"}, "lastModifiedDate": "2022-07-26T21:15Z"}