CVE-2024-36910 - Vulnerability Details - OpenCVE

ReportizFlow

In the Linux kernel, the following vulnerability has been resolved: uio_hv_generic: Don't free decrypted memory In CoCo VMs it is possible for the untrusted host to cause set_memory_encrypted() or set_memory_decrypted() to fail such that an error is returned and the resulting memory is shared. Callers need to take care to handle these errors to avoid returning decrypted (shared) memory to the page allocator, which could lead to functional or security issues. The VMBus device UIO driver could free decrypted/shared pages if set_memory_decrypted() fails. Check the decrypted field in the gpadl to decide whether to free the memory.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Vendors	Products
Linux	Linux Kernel

No data.

No data.

References

Link	Providers
https://git.kernel.org/stable/c/3d788b2fbe6a1a1a9e3db09742b90809d51638b7
https://git.kernel.org/stable/c/6466a0f6d235c8a18c602cb587160d7e49876db9
https://git.kernel.org/stable/c/dabf12bf994318d939f70d47cfda30e47abb2c54
https://git.kernel.org/stable/c/fe2c58602354fbd60680dc42ac3a0b772cda7d23
https://lore.kernel.org/linux-cve-announce/2024053037-CVE-2024-36910-6949@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2024-36910
https://www.cve.org/CVERecord?id=CVE-2024-36910

History

Wed, 06 Nov 2024 08:15:00 +0000

Type	Values Removed	Values Added
First Time appeared		Linux Linux linux Kernel
CPEs		cpe:2.3:o:linux:linux_kernel:::::::: cpe:2.3:o:linux:linux_kernel:-:::::::*
Vendors & Products		Linux Linux linux Kernel
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-05-30T15:29:08.902Z

Updated: 2024-12-19T09:01:53.302Z

Reserved: 2024-05-30T15:25:07.067Z

Link: CVE-2024-36910

Vulnrichment

Updated: 2024-08-02T03:43:50.063Z

NVD

Status : Awaiting Analysis

Published: 2024-05-30T16:15:14.457

Modified: 2024-11-21T09:22:47.707

Link: CVE-2024-36910

Redhat

Severity : Low

Publid Date: 2024-05-30T00:00:00Z

Links: CVE-2024-36910 - Bugzilla

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Callers need to\ntake care to handle these errors to avoid returning decrypted (shared)\nmemory to the page allocator, which could lead to functional or security\nissues.\n\nThe VMBus device UIO driver could free decrypted/shared pages if\nset_memory_decrypted() fails. Check the decrypted field in the gpadl\nto decide whether to free the memory."}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-12-19T09:01:53.302Z"}}}, "cveMetadata": {"cveId": "CVE-2024-36910", "state": "PUBLISHED", "dateUpdated": "2024-12-19T09:01:53.302Z", "dateReserved": "2024-05-30T15:25:07.067Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-05-30T15:29:08.902Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nuio_hv_generic: Don't free decrypted memory\n\nIn CoCo VMs it is possible for the untrusted host to cause\nset_memory_encrypted() or set_memory_decrypted() to fail such that an\nerror is returned and the resulting memory is shared. Callers need to\ntake care to handle these errors to avoid returning decrypted (shared)\nmemory to the page allocator, which could lead to functional or security\nissues.\n\nThe VMBus device UIO driver could free decrypted/shared pages if\nset_memory_decrypted() fails. Check the decrypted field in the gpadl\nto decide whether to free the memory."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: uio_hv_generic: no liberar memoria descifrada. En las m\u00e1quinas virtuales CoCo, es posible que el host que no es de confianza provoque que set_memory_encrypted() o set_memory_decrypted() falle, de modo que se devuelva un error y el resultado La memoria es compartida. Las personas que llaman deben tener cuidado al manejar estos errores para evitar devolver memoria descifrada (compartida) al asignador de p\u00e1ginas, lo que podr\u00eda provocar problemas funcionales o de seguridad. El controlador UIO del dispositivo VMBus podr\u00eda liberar p\u00e1ginas descifradas/compartidas si falla set_memory_decrypted(). Verifique el campo descifrado en gpadl para decidir si desea liberar la memoria."}], "id": "CVE-2024-36910", "lastModified": "2024-11-21T09:22:47.707", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 6.2, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.5, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "published": "2024-05-30T16:15:14.457", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3d788b2fbe6a1a1a9e3db09742b90809d51638b7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6466a0f6d235c8a18c602cb587160d7e49876db9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/dabf12bf994318d939f70d47cfda30e47abb2c54"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/fe2c58602354fbd60680dc42ac3a0b772cda7d23"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/3d788b2fbe6a1a1a9e3db09742b90809d51638b7"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/6466a0f6d235c8a18c602cb587160d7e49876db9"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/dabf12bf994318d939f70d47cfda30e47abb2c54"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://git.kernel.org/stable/c/fe2c58602354fbd60680dc42ac3a0b772cda7d23"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-200"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: uio_hv_generic: Don't free decrypted memory", "id": "2284534", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2284534"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N", "status": "draft"}, "cwe": "CWE-402", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nuio_hv_generic: Don't free decrypted memory\nIn CoCo VMs it is possible for the untrusted host to cause\nset_memory_encrypted() or set_memory_decrypted() to fail such that an\nerror is returned and the resulting memory is shared. Callers need to\ntake care to handle these errors to avoid returning decrypted (shared)\nmemory to the page allocator, which could lead to functional or security\nissues.\nThe VMBus device UIO driver could free decrypted/shared pages if\nset_memory_decrypted() fails. Check the decrypted field in the gpadl\nto decide whether to free the memory."], "name": "CVE-2024-36910", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-05-30T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-36910\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-36910\nhttps://lore.kernel.org/linux-cve-announce/2024053037-CVE-2024-36910-6949@gregkh/T"], "threat_severity": "Low", "upstream_fix": "kernel 6.1.91, kernel 6.6.31, kernel 6.8.10, kernel 6.9"}