CVE-2021-3947
QEMU NVME Stack Buffer Overflow
Description
A stack-buffer-overflow was found in QEMU in the NVME component. The flaw lies in nvme_changed_nslist() where a malicious guest controlling certain input can read out of bounds memory. A malicious user could use this flaw leading to disclosure of sensitive information.
INFO
Published Date :
Feb. 18, 2022, 6:15 p.m.
Last Modified :
Nov. 21, 2023, 9:38 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
Public PoC/Exploit Available at Github
CVE-2021-3947 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
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-2021-3947.
| URL | Resource |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=2021869 | Issue Tracking Patch Vendor Advisory |
| https://security.gentoo.org/glsa/202208-27 | Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20220318-0003/ | Third Party 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).
Recursive MMIO VM Escape PoC
C
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-3947 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-3947 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 -
Reanalysis by [email protected]
Nov. 21, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* versions up to (including) 6.1.0 *cpe:2.3:a:qemu:qemu:6.2.0:rc0:*:*:*:*:*:* *cpe:2.3:a:qemu:qemu:6.2.0:rc1:*:*:*:*:*:* OR *cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* versions from (including) 6.0.0 up to (including) 6.1.0 *cpe:2.3:a:qemu:qemu:6.2.0:rc0:*:*:*:*:*:* *cpe:2.3:a:qemu:qemu:6.2.0:rc1:*:*:*:*:*:* -
Modified Analysis by [email protected]
Oct. 25, 2022
Action Type Old Value New Value Changed Reference Type https://security.gentoo.org/glsa/202208-27 No Types Assigned https://security.gentoo.org/glsa/202208-27 Third Party Advisory -
CVE Modified by [email protected]
Aug. 15, 2022
Action Type Old Value New Value Added Reference https://security.gentoo.org/glsa/202208-27 [No Types Assigned] -
Modified Analysis by [email protected]
May. 11, 2022
Action Type Old Value New Value Changed Reference Type https://security.netapp.com/advisory/ntap-20220318-0003/ No Types Assigned https://security.netapp.com/advisory/ntap-20220318-0003/ Third Party Advisory -
CVE Modified by [email protected]
Mar. 18, 2022
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20220318-0003/ [No Types Assigned] -
Reanalysis by [email protected]
Mar. 08, 2022
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* versions up to (excluding) 6.2.0 *cpe:2.3:a:qemu:qemu:6.2.0:-:*:*:*:*:*:* OR *cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* versions up to (including) 6.1.0 *cpe:2.3:a:qemu:qemu:6.2.0:rc0:*:*:*:*:*:* *cpe:2.3:a:qemu:qemu:6.2.0:rc1:*:*:*:*:*:* -
Initial Analysis by [email protected]
Feb. 28, 2022
Action Type Old Value New Value Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:P/I:N/A:N) Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=2021869 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=2021869 Issue Tracking, Patch, Vendor Advisory Added CWE NIST CWE-125 Added CPE Configuration OR *cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* versions up to (excluding) 6.2.0 *cpe:2.3:a:qemu:qemu:6.2.0:-:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-3947 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-2021-3947
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.05 }} 0.00%
score
0.14265
percentile