CVE-2024-50281

{"id": "CVE-2024-50281", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "published": "2024-11-19T02:16:30.413", "references": [{"url": "https://git.kernel.org/stable/c/04de7589e0a95167d803ecadd115235ba2c14997", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/c75e0272289eae18c5379518a9c56ef31d65cc7d", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-476"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKEYS: trusted: dcp: fix NULL dereference in AEAD crypto operation\n\nWhen sealing or unsealing a key blob we currently do not wait for\nthe AEAD cipher operation to finish and simply return after submitting\nthe request. If there is some load on the system we can exit before\nthe cipher operation is done and the buffer we read from/write to\nis already removed from the stack. This will e.g. result in NULL\npointer dereference errors in the DCP driver during blob creation.\n\nFix this by waiting for the AEAD cipher operation to finish before\nresuming the seal and unseal calls."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: KEYS: trusted: dcp: fix NULL dereference in AEAD cryptooperation Al sellar o desellar un blob de claves, actualmente no esperamos a que finalice la operaci\u00f3n de cifrado AEAD y simplemente regresamos despu\u00e9s de enviar la solicitud. Si hay alguna carga en el sistema, podemos salir antes de que finalice la operaci\u00f3n de cifrado y el b\u00fafer desde el que leemos/escribimos ya se elimin\u00f3 de la pila. Esto, por ejemplo, dar\u00e1 como resultado errores de desreferencia de puntero NULL en el controlador DCP durante la creaci\u00f3n del blob. Solucione esto esperando a que finalice la operaci\u00f3n de cifrado AEAD antes de reanudar las llamadas de sellado y dessellado."}], "lastModified": "2024-11-21T19:27:19.097", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "728427FE-4653-45EF-AA11-DA6A6AF58B8F", "versionEndExcluding": "6.11.8", "versionStartIncluding": "6.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.10.7:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6DF5EB33-2A8E-4768-B03E-823B0CCF32EF"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7F361E1D-580F-4A2D-A509-7615F73167A1"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "925478D0-3E3D-4E6F-ACD5-09F28D5DF82C"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3C95E234-D335-4B6C-96BF-E2CEBD8654ED"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E0F717D8-3014-4F84-8086-0124B2111379"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "24DBE6C7-2AAE-4818-AED2-E131F153D2FA"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "24B88717-53F5-42AA-9B72-14C707639E3F"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}