CVE-2024-56756
"Nvidia NVMe Host Memory Buffer Descriptor Table DMA Free Vulnerability"
Description
In the Linux kernel, the following vulnerability has been resolved: nvme-pci: fix freeing of the HMB descriptor table The HMB descriptor table is sized to the maximum number of descriptors that could be used for a given device, but __nvme_alloc_host_mem could break out of the loop earlier on memory allocation failure and end up using less descriptors than planned for, which leads to an incorrect size passed to dma_free_coherent. In practice this was not showing up because the number of descriptors tends to be low and the dma coherent allocator always allocates and frees at least a page.
INFO
Published Date :
Dec. 29, 2024, 12:15 p.m.
Last Modified :
Jan. 6, 2025, 8:33 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
Public PoC/Exploit Available at Github
CVE-2024-56756 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2024-56756.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
None
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The following list is the news that have been mention
CVE-2024-56756 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-56756 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Jan. 06, 2025
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE NIST NVD-CWE-Other Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.13 up to (excluding) 5.4.287 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.231 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.174 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.120 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.64 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.11.11 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.12 up to (excluding) 6.12.2 Changed Reference Type https://git.kernel.org/stable/c/3c2fb1ca8086eb139b2a551358137525ae8e0d7a No Types Assigned https://git.kernel.org/stable/c/3c2fb1ca8086eb139b2a551358137525ae8e0d7a Patch Changed Reference Type https://git.kernel.org/stable/c/452f9ddd12bebc04cef741e8ba3806bf0e1fd015 No Types Assigned https://git.kernel.org/stable/c/452f9ddd12bebc04cef741e8ba3806bf0e1fd015 Patch Changed Reference Type https://git.kernel.org/stable/c/582d9ed999b004fb1d415ecbfa86d4d8df455269 No Types Assigned https://git.kernel.org/stable/c/582d9ed999b004fb1d415ecbfa86d4d8df455269 Patch Changed Reference Type https://git.kernel.org/stable/c/6d0f599db73b099aa724a12736369c4d4d92849d No Types Assigned https://git.kernel.org/stable/c/6d0f599db73b099aa724a12736369c4d4d92849d Patch Changed Reference Type https://git.kernel.org/stable/c/869cf50b9c9d1059f5223f79ef68fc0bc6210095 No Types Assigned https://git.kernel.org/stable/c/869cf50b9c9d1059f5223f79ef68fc0bc6210095 Patch Changed Reference Type https://git.kernel.org/stable/c/ac22240540e0c5230d8c4138e3778420b712716a No Types Assigned https://git.kernel.org/stable/c/ac22240540e0c5230d8c4138e3778420b712716a Patch Changed Reference Type https://git.kernel.org/stable/c/cee3bff51a35cab1c5d842d409a7b11caefe2386 No Types Assigned https://git.kernel.org/stable/c/cee3bff51a35cab1c5d842d409a7b11caefe2386 Patch Changed Reference Type https://git.kernel.org/stable/c/fb96d5cfa97a7363245b3dd523f475b04296d87b No Types Assigned https://git.kernel.org/stable/c/fb96d5cfa97a7363245b3dd523f475b04296d87b Patch -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Dec. 29, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: nvme-pci: fix freeing of the HMB descriptor table The HMB descriptor table is sized to the maximum number of descriptors that could be used for a given device, but __nvme_alloc_host_mem could break out of the loop earlier on memory allocation failure and end up using less descriptors than planned for, which leads to an incorrect size passed to dma_free_coherent. In practice this was not showing up because the number of descriptors tends to be low and the dma coherent allocator always allocates and frees at least a page. Added Reference https://git.kernel.org/stable/c/3c2fb1ca8086eb139b2a551358137525ae8e0d7a Added Reference https://git.kernel.org/stable/c/452f9ddd12bebc04cef741e8ba3806bf0e1fd015 Added Reference https://git.kernel.org/stable/c/582d9ed999b004fb1d415ecbfa86d4d8df455269 Added Reference https://git.kernel.org/stable/c/6d0f599db73b099aa724a12736369c4d4d92849d Added Reference https://git.kernel.org/stable/c/869cf50b9c9d1059f5223f79ef68fc0bc6210095 Added Reference https://git.kernel.org/stable/c/ac22240540e0c5230d8c4138e3778420b712716a Added Reference https://git.kernel.org/stable/c/cee3bff51a35cab1c5d842d409a7b11caefe2386 Added Reference https://git.kernel.org/stable/c/fb96d5cfa97a7363245b3dd523f475b04296d87b
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-56756 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2024-56756
weaknesses.