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ubuntucveUbuntu.comUB:CVE-2024-36913
HistoryMay 30, 2024 - 12:00 a.m.

CVE-2024-36913

2024-05-3000:00:00
ubuntu.com
ubuntu.com
5
linux kernel
hv drivers
vulnerability
coco vms
vmbus code
memory encryption

7.3 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

15.7%

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.

7.3 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

15.7%