gsd-2021-46922
Vulnerability from gsd
Modified
2024-02-26 06:03
Details
In the Linux kernel, the following vulnerability has been resolved:
KEYS: trusted: Fix TPM reservation for seal/unseal
The original patch 8c657a0590de ("KEYS: trusted: Reserve TPM for seal
and unseal operations") was correct on the mailing list:
https://lore.kernel.org/linux-integrity/20210128235621.127925-4-jarkko@kernel.org/
But somehow got rebased so that the tpm_try_get_ops() in
tpm2_seal_trusted() got lost. This causes an imbalanced put of the
TPM ops and causes oopses on TIS based hardware.
This fix puts back the lost tpm_try_get_ops()
Aliases
{ "gsd": { "metadata": { "exploitCode": "unknown", "remediation": "unknown", "reportConfidence": "confirmed", "type": "vulnerability" }, "osvSchema": { "aliases": [ "CVE-2021-46922" ], "details": "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()", "id": "GSD-2021-46922", "modified": "2024-02-26T06:03:52.447493Z", "schema_version": "1.4.0" } }, "namespaces": { "cve.org": { "CVE_data_meta": { "ASSIGNER": "cve@kernel.org", "ID": "CVE-2021-46922", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "Linux", "version": { "version_data": [ { "version_affected": "\u003c", "version_name": "67118bb78d72", "version_value": "bf84ef2dd2cc" }, { "version_affected": "\u003c", "version_name": "498b8fc1cdc1", "version_value": "39c8d760d44c" }, { "version_affected": "\u003c", "version_name": "8c657a0590de", "version_value": "9d5171eab462" }, { "version_affected": "\u003c", "version_name": "5.10.20", "version_value": "5.10.33" }, { "version_affected": "\u003c", "version_name": "5.11.3", "version_value": "5.11.17" } ] } } ] }, "vendor_name": "Linux" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "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()" } ] }, "generator": { "engine": "bippy-5f0117140d9a" }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "n/a" } ] } ] }, "references": { "reference_data": [ { "name": "https://git.kernel.org/stable/c/bf84ef2dd2ccdcd8f2658476d34b51455f970ce4", "refsource": "MISC", "url": "https://git.kernel.org/stable/c/bf84ef2dd2ccdcd8f2658476d34b51455f970ce4" }, { "name": "https://git.kernel.org/stable/c/39c8d760d44cb3fa0d67e8cd505df81cf4d80999", "refsource": "MISC", "url": "https://git.kernel.org/stable/c/39c8d760d44cb3fa0d67e8cd505df81cf4d80999" }, { "name": "https://git.kernel.org/stable/c/9d5171eab462a63e2fbebfccf6026e92be018f20", "refsource": "MISC", "url": "https://git.kernel.org/stable/c/9d5171eab462a63e2fbebfccf6026e92be018f20" } ] } }, "nvd.nist.gov": { "cve": { "configurations": [ { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "678C39EB-D88C-48F4-A92A-6DCED8C4AAB3", "versionEndExcluding": "5.10.33", "versionStartIncluding": "5.10.20", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "958FE4FA-5C20-44BA-AED2-CC30933595C2", "versionEndExcluding": "5.11.17", "versionStartIncluding": "5.11.3", "vulnerable": true } ], "negate": false, "operator": "OR" } ] } ], "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" } ], "id": "CVE-2021-46922", "lastModified": "2024-04-10T15:31:51.440", "metrics": { "cvssMetricV31": [ { "cvssData": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" }, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary" } ] }, "published": "2024-02-27T10:15:07.053", "references": [ { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ], "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" } ], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [ { "description": [ { "lang": "en", "value": "NVD-CWE-noinfo" } ], "source": "nvd@nist.gov", "type": "Primary" } ] } } } }
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Sightings
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