| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "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." |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "arch/x86/kvm/svm/nested.c" |
| ], |
| "versions": [ |
| { |
| "version": "e4e517b4be019787ada4cbbce2f04570c21b0cbd", |
| "lessThan": "76ce386feb14ec9a460784fcd495d8432acce7a5", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "e4e517b4be019787ada4cbbce2f04570c21b0cbd", |
| "lessThan": "58cb697d80e669c56197f703e188867c8c54c494", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "e4e517b4be019787ada4cbbce2f04570c21b0cbd", |
| "lessThan": "6876793907cbe19d42e9edc8c3315a21e06c32ae", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "e4e517b4be019787ada4cbbce2f04570c21b0cbd", |
| "lessThan": "2c4adc9b192a0815fe58a62bc0709449416cc884", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "e4e517b4be019787ada4cbbce2f04570c21b0cbd", |
| "lessThan": "426682afec71ea3f889b972d038238807b9443e4", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "e4e517b4be019787ada4cbbce2f04570c21b0cbd", |
| "lessThan": "f559b2e9c5c5308850544ab59396b7d53cfc67bd", |
| "status": "affected", |
| "versionType": "git" |
| } |
| ] |
| }, |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "affected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "arch/x86/kvm/svm/nested.c" |
| ], |
| "versions": [ |
| { |
| "version": "3.2", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "3.2", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.10.229", |
| "lessThanOrEqual": "5.10.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.15.170", |
| "lessThanOrEqual": "5.15.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.1.115", |
| "lessThanOrEqual": "6.1.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.6.59", |
| "lessThanOrEqual": "6.6.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.11.6", |
| "lessThanOrEqual": "6.11.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.12", |
| "lessThanOrEqual": "*", |
| "status": "unaffected", |
| "versionType": "original_commit_for_fix" |
| } |
| ] |
| } |
| ], |
| "cpeApplicability": [ |
| { |
| "nodes": [ |
| { |
| "operator": "OR", |
| "negate": false, |
| "cpeMatch": [ |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "3.2", |
| "versionEndExcluding": "5.10.229" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "3.2", |
| "versionEndExcluding": "5.15.170" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "3.2", |
| "versionEndExcluding": "6.1.115" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "3.2", |
| "versionEndExcluding": "6.6.59" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "3.2", |
| "versionEndExcluding": "6.11.6" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "3.2", |
| "versionEndExcluding": "6.12" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/76ce386feb14ec9a460784fcd495d8432acce7a5" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/58cb697d80e669c56197f703e188867c8c54c494" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/6876793907cbe19d42e9edc8c3315a21e06c32ae" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/2c4adc9b192a0815fe58a62bc0709449416cc884" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/426682afec71ea3f889b972d038238807b9443e4" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/f559b2e9c5c5308850544ab59396b7d53cfc67bd" |
| } |
| ], |
| "title": "KVM: nSVM: Ignore nCR3[4:0] when loading PDPTEs from memory", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2024-50115", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
