cve-2021-46922
Vulnerability from cvelistv5
Published
2024-02-27 09:36
Modified
2024-11-04 11:30
Severity ?
EPSS score ?
Summary
KEYS: trusted: Fix TPM reservation for seal/unseal
References
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This causes an imbalanced put of the\nTPM ops and causes oopses on TIS based hardware.\n\nThis fix puts back the lost tpm_try_get_ops()" } ], "providerMetadata": { "dateUpdated": "2024-11-04T11:30:50.931Z", "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux" }, "references": [ { "url": "https://git.kernel.org/stable/c/bf84ef2dd2ccdcd8f2658476d34b51455f970ce4" }, { "url": "https://git.kernel.org/stable/c/39c8d760d44cb3fa0d67e8cd505df81cf4d80999" }, { "url": "https://git.kernel.org/stable/c/9d5171eab462a63e2fbebfccf6026e92be018f20" } ], "title": "KEYS: trusted: Fix TPM reservation for seal/unseal", "x_generator": { "engine": "bippy-c8e10e5f6187" } } }, "cveMetadata": { "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "assignerShortName": "Linux", "cveId": "CVE-2021-46922", "datePublished": "2024-02-27T09:36:27.145Z", "dateReserved": "2024-02-25T13:45:52.719Z", "dateUpdated": "2024-11-04T11:30:50.931Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2021-46922\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-02-27T10:15:07.053\",\"lastModified\":\"2024-04-10T15:31:51.440\",\"vulnStatus\":\"Analyzed\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nKEYS: trusted: Fix TPM reservation for seal/unseal\\n\\nThe original patch 8c657a0590de (\\\"KEYS: trusted: Reserve TPM for seal\\nand unseal operations\\\") was correct on the mailing list:\\n\\nhttps://lore.kernel.org/linux-integrity/20210128235621.127925-4-jarkko@kernel.org/\\n\\nBut somehow got rebased so that the tpm_try_get_ops() in\\ntpm2_seal_trusted() got lost. This causes an imbalanced put of the\\nTPM ops and causes oopses on TIS based hardware.\\n\\nThis fix puts back the lost tpm_try_get_ops()\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: KEYS: de confianza: corrige la reserva de TPM para sellar/dessellar El parche original 8c657a0590de (\\\"KEYS: de confianza: reservar TPM para operaciones de sellar y dessellar\\\") era correcto en la lista de correo: https ://lore.kernel.org/linux-integrity/20210128235621.127925-4-jarkko@kernel.org/ Pero de alguna manera se modific\u00f3 la base para que tpm_try_get_ops() en tpm2_seal_trusted() se perdiera. Esto provoca un desequilibrio en las operaciones de TPM y provoca fallos en el hardware basado en TIS. Esta soluci\u00f3n devuelve el tpm_try_get_ops() perdido\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.10.20\",\"versionEndExcluding\":\"5.10.33\",\"matchCriteriaId\":\"678C39EB-D88C-48F4-A92A-6DCED8C4AAB3\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11.3\",\"versionEndExcluding\":\"5.11.17\",\"matchCriteriaId\":\"958FE4FA-5C20-44BA-AED2-CC30933595C2\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/39c8d760d44cb3fa0d67e8cd505df81cf4d80999\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/9d5171eab462a63e2fbebfccf6026e92be018f20\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/bf84ef2dd2ccdcd8f2658476d34b51455f970ce4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}" } }
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Sightings
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Nomenclature
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