CVE-2023-46837
Arm ARM64 Cache Overflow Vulnerability
Description
Arm provides multiple helpers to clean & invalidate the cache for a given region. This is, for instance, used when allocating guest memory to ensure any writes (such as the ones during scrubbing) have reached memory before handing over the page to a guest. Unfortunately, the arithmetics in the helpers can overflow and would then result to skip the cache cleaning/invalidation. Therefore there is no guarantee when all the writes will reach the memory. This undefined behavior was meant to be addressed by XSA-437, but the approach was not sufficient.
INFO
Published Date :
Jan. 5, 2024, 5:15 p.m.
Last Modified :
Feb. 15, 2024, 3:15 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
1.4
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-2023-46837.
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-2023-46837 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-46837 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 [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Feb. 15, 2024
Action Type Old Value New Value Added Reference Xen Project https://lists.fedoraproject.org/archives/list/[email protected]/message/JFVKWYQFRUU3CAS53THTUKXEOUDWI42G/ [No types assigned] -
CVE Modified by [email protected]
Feb. 15, 2024
Action Type Old Value New Value Added Reference Xen Project https://lists.fedoraproject.org/archives/list/[email protected]/message/XLL6SQ6IKFYXLYWITYZCRV5IBRK5G35R/ [No types assigned] -
Initial Analysis by [email protected]
Jan. 11, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N Changed Reference Type https://xenbits.xenproject.org/xsa/advisory-447.html No Types Assigned https://xenbits.xenproject.org/xsa/advisory-447.html Patch, Vendor Advisory Added CWE NIST CWE-119 Added CPE Configuration OR *cpe:2.3:o:xen:xen:*:*:*:*:*:*:x86:* versions up to (including) 4.16 -
CVE Received by [email protected]
Jan. 05, 2024
Action Type Old Value New Value Added Description Arm provides multiple helpers to clean & invalidate the cache for a given region. This is, for instance, used when allocating guest memory to ensure any writes (such as the ones during scrubbing) have reached memory before handing over the page to a guest. Unfortunately, the arithmetics in the helpers can overflow and would then result to skip the cache cleaning/invalidation. Therefore there is no guarantee when all the writes will reach the memory. This undefined behavior was meant to be addressed by XSA-437, but the approach was not sufficient. Added Reference Xen Project https://xenbits.xenproject.org/xsa/advisory-447.html [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-2023-46837 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-2023-46837
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.04 }} 0.00%
score
0.12002
percentile