CVE-2021-46918
Intel idxd DMA Engine MSIX Permission Entry Clearance Vulnerability
Description
In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: clear MSIX permission entry on shutdown Add disabling/clearing of MSIX permission entries on device shutdown to mirror the enabling of the MSIX entries on probe. Current code left the MSIX enabled and the pasid entries still programmed at device shutdown.
INFO
Published Date :
Feb. 27, 2024, 7:15 a.m.
Last Modified :
April 10, 2024, 2:47 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
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-2021-46918
.
URL | Resource |
---|---|
https://git.kernel.org/stable/c/6df0e6c57dfc064af330071f372f11aa8c584997 | Patch |
https://git.kernel.org/stable/c/c84b8982d7aa9b4717dc36a1c6cbc93ee153b500 | Patch |
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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-46918
vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-46918
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.
-
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 28, 2024
Action Type Old Value New Value -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Apr. 10, 2024
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 Changed Reference Type https://git.kernel.org/stable/c/6df0e6c57dfc064af330071f372f11aa8c584997 No Types Assigned https://git.kernel.org/stable/c/6df0e6c57dfc064af330071f372f11aa8c584997 Patch Changed Reference Type https://git.kernel.org/stable/c/c84b8982d7aa9b4717dc36a1c6cbc93ee153b500 No Types Assigned https://git.kernel.org/stable/c/c84b8982d7aa9b4717dc36a1c6cbc93ee153b500 Patch Added CWE NIST NVD-CWE-noinfo Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11.0 up to (excluding) 5.11.16 -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Feb. 27, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: clear MSIX permission entry on shutdown Add disabling/clearing of MSIX permission entries on device shutdown to mirror the enabling of the MSIX entries on probe. Current code left the MSIX enabled and the pasid entries still programmed at device shutdown. Added Reference Linux https://git.kernel.org/stable/c/c84b8982d7aa9b4717dc36a1c6cbc93ee153b500 [No types assigned] Added Reference Linux https://git.kernel.org/stable/c/6df0e6c57dfc064af330071f372f11aa8c584997 [No types assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-46918
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-2021-46918
weaknesses.