CVE-2021-45971
InsydeH2O SdHostDriver Buffer Validation Vulnerability
Description
An issue was discovered in SdHostDriver in Insyde InsydeH2O with kernel 5.1 before 05.16.25, 5.2 before 05.26.25, 5.3 before 05.35.25, 5.4 before 05.43.25, and 5.5 before 05.51.25. A vulnerability exists in the SMM (System Management Mode) branch that registers a SWSMI handler that does not sufficiently check or validate the allocated buffer pointer (CommBufferData).
INFO
Published Date :
Jan. 6, 2022, 12:15 a.m.
Last Modified :
March 29, 2022, 4:35 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
6.0
Exploitability Score :
1.5
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-2021-45971.
| URL | Resource |
|---|---|
| https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf | Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20220216-0004/ | Third Party Advisory |
| https://www.insyde.com/security-pledge | Vendor Advisory |
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-2021-45971 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-45971 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 -
Modified Analysis by [email protected]
Mar. 29, 2022
Action Type Old Value New Value Changed Reference Type https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf No Types Assigned https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf Third Party Advisory Changed Reference Type https://security.netapp.com/advisory/ntap-20220216-0004/ No Types Assigned https://security.netapp.com/advisory/ntap-20220216-0004/ Third Party Advisory -
CVE Modified by [email protected]
Feb. 24, 2022
Action Type Old Value New Value Added Reference https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf [No Types Assigned] -
CVE Modified by [email protected]
Feb. 17, 2022
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20220216-0004/ [No Types Assigned] -
Reanalysis by [email protected]
Feb. 08, 2022
Action Type Old Value New Value Removed CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P) Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:C/I:C/A:C) Removed CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CVSS V3.1 NIST AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H Removed CWE NIST CWE-120 Added CWE NIST CWE-787 -
Initial Analysis by [email protected]
Jan. 13, 2022
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://www.insyde.com/security-pledge No Types Assigned https://www.insyde.com/security-pledge Vendor Advisory Added CWE NIST CWE-120 Added CPE Configuration OR *cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:* versions from (including) 5.1 up to (excluding) 5.16.25 Added CPE Configuration OR *cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:* versions from (including) 5.2 up to (excluding) 5.26.25 Added CPE Configuration OR *cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:* versions from (including) 5.3 up to (excluding) 5.35.25 Added CPE Configuration OR *cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:* versions from (including) 5.4 up to (excluding) 5.43.25 Added CPE Configuration OR *cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 05.51.25
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-45971 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-2021-45971
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
0.10323
percentile