PT-2024-27199 · Linux+6 · Linux Kernel+6
Michael Kelley
·
Published
2024-03-11
·
Updated
2026-05-26
·
CVE-2024-36909
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
In CoCo VMs, it is possible for the untrusted host to cause
set memory encrypted() or set memory decrypted() to fail, resulting in shared memory. Callers need to handle these errors to avoid returning decrypted memory to the page allocator, which could lead to functional or security issues. The VMBus ring buffer code could free decrypted/shared pages if set memory decrypted() fails. Checking the decrypted field in the struct vmbus gpadl for the ring buffers can help decide whether to free the memory.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
DoS
Memory Leak
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Related Identifiers
Affected Products
Astra Linux
Debian
Linuxmint
Linux Kernel
Red Os
Suse
Ubuntu