CVE-2024-50193
Intel CPU Buffer Cleardown Vulnerability
Description
In the Linux kernel, the following vulnerability has been resolved: x86/entry_32: Clear CPU buffers after register restore in NMI return CPU buffers are currently cleared after call to exc_nmi, but before register state is restored. This may be okay for MDS mitigation but not for RDFS. Because RDFS mitigation requires CPU buffers to be cleared when registers don't have any sensitive data. Move CLEAR_CPU_BUFFERS after RESTORE_ALL_NMI.
INFO
Published Date :
Nov. 8, 2024, 6:15 a.m.
Last Modified :
Nov. 29, 2024, 7:29 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
5.2
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-2024-50193.
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-2024-50193 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-50193 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.
-
Initial Analysis by [email protected]
Nov. 29, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H Added CWE NIST NVD-CWE-noinfo Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 5.10.228 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.169 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.114 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.58 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.8 up to (excluding) 6.11.5 *cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:* Changed Reference Type https://git.kernel.org/stable/c/227358e89703c344008119be7e8ffa3fdb5b92de No Types Assigned https://git.kernel.org/stable/c/227358e89703c344008119be7e8ffa3fdb5b92de Patch Changed Reference Type https://git.kernel.org/stable/c/43778de19d2ef129636815274644b9c16e78c66b No Types Assigned https://git.kernel.org/stable/c/43778de19d2ef129636815274644b9c16e78c66b Patch Changed Reference Type https://git.kernel.org/stable/c/48a2440d0f20c826b884e04377ccc1e4696c84e9 No Types Assigned https://git.kernel.org/stable/c/48a2440d0f20c826b884e04377ccc1e4696c84e9 Patch Changed Reference Type https://git.kernel.org/stable/c/64adf22c4bc73ede920baca5defefb70f190cdbc No Types Assigned https://git.kernel.org/stable/c/64adf22c4bc73ede920baca5defefb70f190cdbc Patch Changed Reference Type https://git.kernel.org/stable/c/6f44a5fc15b5cece0785bc07453db77d99b0a6de No Types Assigned https://git.kernel.org/stable/c/6f44a5fc15b5cece0785bc07453db77d99b0a6de Patch Changed Reference Type https://git.kernel.org/stable/c/b6400eb0b347821efc57760221f8fb6d63b9548a No Types Assigned https://git.kernel.org/stable/c/b6400eb0b347821efc57760221f8fb6d63b9548a Patch -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Nov. 08, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: x86/entry_32: Clear CPU buffers after register restore in NMI return CPU buffers are currently cleared after call to exc_nmi, but before register state is restored. This may be okay for MDS mitigation but not for RDFS. Because RDFS mitigation requires CPU buffers to be cleared when registers don't have any sensitive data. Move CLEAR_CPU_BUFFERS after RESTORE_ALL_NMI. Added Reference kernel.org https://git.kernel.org/stable/c/6f44a5fc15b5cece0785bc07453db77d99b0a6de [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/b6400eb0b347821efc57760221f8fb6d63b9548a [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/43778de19d2ef129636815274644b9c16e78c66b [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/227358e89703c344008119be7e8ffa3fdb5b92de [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/64adf22c4bc73ede920baca5defefb70f190cdbc [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/48a2440d0f20c826b884e04377ccc1e4696c84e9 [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-2024-50193 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-2024-50193
weaknesses.