CVE-2021-38578
Intel Coreboot Buffer Underflow Vulnerability
Description
Existing CommBuffer checks in SmmEntryPoint will not catch underflow when computing BufferSize.
INFO
Published Date :
March 3, 2022, 10:15 p.m.
Last Modified :
Nov. 21, 2024, 6:17 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2021-38578
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | HIGH | [email protected] | ||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | CRITICAL | [email protected] |
Solution
- Update affected packages to the latest versions.
- Reboot the system after updating.
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-2021-38578.
| URL | Resource |
|---|---|
| https://bugzilla.tianocore.org/show_bug.cgi?id=3387 | Issue Tracking Vendor Advisory |
| https://www.insyde.com/security-pledge/SA-2023024 | Third Party Advisory |
| https://bugzilla.tianocore.org/show_bug.cgi?id=3387 | Issue Tracking Vendor Advisory |
| https://www.insyde.com/security-pledge/SA-2023024 | Third Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-38578 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-2021-38578
weaknesses.
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-2021-38578 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-38578 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 af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://bugzilla.tianocore.org/show_bug.cgi?id=3387 Added Reference https://www.insyde.com/security-pledge/SA-2023024 -
CVE Modified by [email protected]
Aug. 06, 2024
Action Type Old Value New Value Changed Description Existing CommBuffer checks in SmmEntryPoint will not catch underflow when computing BufferSize. Existing CommBuffer checks in SmmEntryPoint will not catch underflow when computing BufferSize. Removed CVSS V3.1 TianoCore.org AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H Added CVSS V3.1 TianoCore.org AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:L -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Aug. 02, 2023
Action Type Old Value New Value Changed Reference Type https://bugzilla.tianocore.org/show_bug.cgi?id=3387 Issue Tracking, Permissions Required, Vendor Advisory https://bugzilla.tianocore.org/show_bug.cgi?id=3387 Issue Tracking, Vendor Advisory Changed Reference Type https://www.insyde.com/security-pledge/SA-2023024 No Types Assigned https://www.insyde.com/security-pledge/SA-2023024 Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:insyde:kernel:5.0:*:*:*:*:*:*:* *cpe:2.3:o:insyde:kernel:5.1:*:*:*:*:*:*:* *cpe:2.3:o:insyde:kernel:5.2:*:*:*:*:*:*:* *cpe:2.3:o:insyde:kernel:5.3:*:*:*:*:*:*:* *cpe:2.3:o:insyde:kernel:5.4:*:*:*:*:*:*:* *cpe:2.3:o:insyde:kernel:5.5:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Jul. 23, 2023
Action Type Old Value New Value Added Reference https://www.insyde.com/security-pledge/SA-2023024 [No Types Assigned] -
Modified Analysis by [email protected]
Dec. 03, 2022
Action Type Old Value New Value -
CVE Modified by [email protected]
Nov. 22, 2022
Action Type Old Value New Value Added CVSS V3.1 TianoCore.org AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H -
Initial Analysis by [email protected]
Mar. 10, 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://bugzilla.tianocore.org/show_bug.cgi?id=3387 No Types Assigned https://bugzilla.tianocore.org/show_bug.cgi?id=3387 Issue Tracking, Permissions Required, Vendor Advisory Added CWE NIST CWE-787 Added CPE Configuration OR *cpe:2.3:a:tianocore:edk2:*:*:*:*:*:*:*:* versions up to (including) 202202
Vulnerability Scoring Details
Base CVSS Score: 9.8
Base CVSS Score: 7.5
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.06 }} 0.01%
score
0.17862
percentile