CVE-2024-36912 - OpenCVE

In the Linux kernel, the following vulnerability has been resolved: Drivers: hv: vmbus: Track decrypted status in vmbus_gpadl 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. In order to make sure callers of vmbus_establish_gpadl() and vmbus_teardown_gpadl() don't return decrypted/shared pages to allocators, add a field in struct vmbus_gpadl to keep track of the decryption status of the buffers. This will allow the callers to know if they should free or leak the pages.

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

No data.

No data.

No data.

References

Link	Providers
https://git.kernel.org/stable/c/1999644d95194d4a58d3e80ad04ce19220a01a81
https://git.kernel.org/stable/c/211f514ebf1ef5de37b1cf6df9d28a56cfd242ca
https://git.kernel.org/stable/c/8e62341f5c45b27519b7d193bcc32ada416ad9d8
https://git.kernel.org/stable/c/bfae56be077ba14311509e70706a13458f87ea99
https://lore.kernel.org/linux-cve-announce/2024053038-CVE-2024-36912-b637@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2024-36912
https://www.cve.org/CVERecord?id=CVE-2024-36912

History

No history.

MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-05-30T15:29:10.454Z

Updated: 2024-11-05T09:27:57.264Z

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

Link: CVE-2024-36912

Vulnrichment

Updated: 2024-08-02T03:43:50.056Z

NVD

Status : Awaiting Analysis

Published: 2024-05-30T16:15:14.607

Modified: 2024-07-03T02:03:49.030

Link: CVE-2024-36912

Redhat

Severity : Low

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

Links: CVE-2024-36912 - Bugzilla

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