CVE-2024-36913

In the Linux kernel, the following vulnerability has been resolved: Drivers: hv: vmbus: Leak pages if set_memory_encrypted() fails 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. VMBus code could free decrypted pages if set_memory_encrypted()/decrypted() fails. Leak the pages if this happens.
Configurations

No configuration.

History

21 Nov 2024, 09:22

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/03f5a999adba062456c8c818a683beb1b498983a - () https://git.kernel.org/stable/c/03f5a999adba062456c8c818a683beb1b498983a -
References () https://git.kernel.org/stable/c/6123a4e8e25bd40cf44db14694abac00e6b664e6 - () https://git.kernel.org/stable/c/6123a4e8e25bd40cf44db14694abac00e6b664e6 -
References () https://git.kernel.org/stable/c/e813a0fc2e597146e9cebea61ced9c796d4e308f - () https://git.kernel.org/stable/c/e813a0fc2e597146e9cebea61ced9c796d4e308f -

03 Jul 2024, 02:03

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 8.1
CWE CWE-1258
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: Controladores: hv: vmbus: páginas de fuga si falla set_memory_encrypted() En máquinas virtuales CoCo, es posible que el host que no es de confianza provoque que set_memory_encrypted() o set_memory_decrypted() falle de manera que se produzca un error se devuelve y la memoria resultante se comparte. Las personas que llaman deben tener cuidado al manejar estos errores para evitar devolver memoria descifrada (compartida) al asignador de páginas, lo que podría provocar problemas funcionales o de seguridad. El código VMBus podría liberar páginas descifradas si falla set_memory_encrypted()/decrypted(). Filtre las páginas si esto sucede.

30 May 2024, 16:15

Type Values Removed Values Added
New CVE

Information

Published : 2024-05-30 16:15

Updated : 2024-11-21 09:22


NVD link : CVE-2024-36913

Mitre link : CVE-2024-36913

CVE.ORG link : CVE-2024-36913


JSON object : View

Products Affected

No product.

CWE
CWE-1258

Exposure of Sensitive System Information Due to Uncleared Debug Information