CVE-2024-50115

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://git.kernel.org/stable/c/58cb697d80e669c56197f703e188867c8c54c494", "name": "https://git.kernel.org/stable/c/58cb697d80e669c56197f703e188867c8c54c494", "tags": ["Patch"], "refsource": ""}, {"url": "https://git.kernel.org/stable/c/6876793907cbe19d42e9edc8c3315a21e06c32ae", "name": "https://git.kernel.org/stable/c/6876793907cbe19d42e9edc8c3315a21e06c32ae", "tags": ["Patch"], "refsource": ""}, {"url": "https://git.kernel.org/stable/c/2c4adc9b192a0815fe58a62bc0709449416cc884", "name": "https://git.kernel.org/stable/c/2c4adc9b192a0815fe58a62bc0709449416cc884", "tags": ["Patch"], "refsource": ""}, {"url": "https://git.kernel.org/stable/c/426682afec71ea3f889b972d038238807b9443e4", "name": "https://git.kernel.org/stable/c/426682afec71ea3f889b972d038238807b9443e4", "tags": ["Patch"], "refsource": ""}, {"url": "https://git.kernel.org/stable/c/f559b2e9c5c5308850544ab59396b7d53cfc67bd", "name": "https://git.kernel.org/stable/c/f559b2e9c5c5308850544ab59396b7d53cfc67bd", "tags": ["Patch"], "refsource": ""}, {"url": "https://git.kernel.org/stable/c/76ce386feb14ec9a460784fcd495d8432acce7a5", "name": "https://git.kernel.org/stable/c/76ce386feb14ec9a460784fcd495d8432acce7a5", "tags": ["Patch"], "refsource": ""}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: nSVM: Ignore nCR3[4:0] when loading PDPTEs from memory\n\nIgnore nCR3[4:0] when loading PDPTEs from memory for nested SVM, as bits\n4:0 of CR3 are ignored when PAE paging is used, and thus VMRUN doesn't\nenforce 32-byte alignment of nCR3.\n\nIn the absolute worst case scenario, failure to ignore bits 4:0 can result\nin an out-of-bounds read, e.g. if the target page is at the end of a\nmemslot, and the VMM isn't using guard pages.\n\nPer the APM:\n\n The CR3 register points to the base address of the page-directory-pointer\n table. The page-directory-pointer table is aligned on a 32-byte boundary,\n with the low 5 address bits 4:0 assumed to be 0.\n\nAnd the SDM's much more explicit:\n\n 4:0 Ignored\n\nNote, KVM gets this right when loading PDPTRs, it's only the nSVM flow\nthat is broken."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-125"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2024-50115", "ASSIGNER": "cve@kernel.org"}}, "impact": {"baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.1, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 1.8}}, "publishedDate": "2024-11-05T18:15Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:linux:linux_kernel:6.12:rc4:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "6.11.6", "versionStartIncluding": "6.7"}, {"cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "6.1.115", "versionStartIncluding": "5.16"}, {"cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "6.6.59", "versionStartIncluding": "6.2"}, {"cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "5.15.170", "versionStartIncluding": "5.11"}, {"cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "5.10.229", "versionStartIncluding": "3.2"}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2024-11-08T19:14Z"}