Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2024-36911

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
30/05/2024
Last modified:
30/09/2025

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> hv_netvsc: Don&amp;#39;t free decrypted memory<br /> <br /> In CoCo VMs it is possible for the untrusted host to cause<br /> set_memory_encrypted() or set_memory_decrypted() to fail such that an<br /> error is returned and the resulting memory is shared. Callers need to<br /> take care to handle these errors to avoid returning decrypted (shared)<br /> memory to the page allocator, which could lead to functional or security<br /> issues.<br /> <br /> The netvsc driver could free decrypted/shared pages if<br /> set_memory_decrypted() fails. Check the decrypted field in the gpadl<br /> to decide whether to free the memory.

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
5.50
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.6.31 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.7 (including) 6.8.10 (excluding)
cpe:2.3:o:linux:linux_kernel:6.9:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.9:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.9:rc3:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools