CVE-2024-36912
HighIn 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.
CVSS 3.1 score
8.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness type
CWE-1258CVE-2024-36912 is classified as CWE-1258
See CWE-1258 on MITRE CWE for full details on this weakness type.
Affected versions
Linux kernel versions
5.16
and later are affected. Fixed in
6.1.91,
6.6.31,
6.8.10,
6.9
and their respective stable series.
References
4 total-
Patch
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Patch
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Patch
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Patch
Frequently asked questions
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What is CVE-2024-36912?
CVE-2024-36912 is a High severity Linux kernel vulnerability with a CVSS score of 8.1 out of 10 . It affects Linux kernel versions from 5.16 onward and has been patched in 6.1.91, 6.6.31, 6.8.10 and others. CVE-2024-36912 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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What is the CVSS score for CVE-2024-36912?
CVE-2024-36912 has a CVSS score of 8.1 out of 10, rated High severity (CVSS 3.1). The vector string is
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H. -
Is there a patch available for CVE-2024-36912?
Yes. CVE-2024-36912 has been patched. Fixed versions include 6.1.91, 6.6.31, 6.8.10 and others. If you are running Linux kernel 5.16 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2024-36912 actively exploited?
No. CVE-2024-36912 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.