Vulnerability Details : 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.
Products affected by CVE-2024-36913
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- 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:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2024-36913
0.25%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 45 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2024-36913
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
8.1
|
HIGH | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
2.2
|
5.9
|
134c704f-9b21-4f2e-91b3-4a467353bcc0 | 2024-07-03 |
CWE ids for CVE-2024-36913
-
The hardware does not fully clear security-sensitive values, such as keys and intermediate values in cryptographic operations, when debug mode is entered.Assigned by: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)
References for CVE-2024-36913
-
https://git.kernel.org/stable/c/e813a0fc2e597146e9cebea61ced9c796d4e308f
Drivers: hv: vmbus: Leak pages if set_memory_encrypted() fails - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/03f5a999adba062456c8c818a683beb1b498983a
Drivers: hv: vmbus: Leak pages if set_memory_encrypted() fails - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/6123a4e8e25bd40cf44db14694abac00e6b664e6
Drivers: hv: vmbus: Leak pages if set_memory_encrypted() fails - kernel/git/stable/linux.git - Linux kernel stable treePatch
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