CVE-2021-32847
HyperKit Host Memory Disclosure Vulnerability
Description
HyperKit is a toolkit for embedding hypervisor capabilities in an application. In versions 0.20210107 and prior, a malicious guest can trigger a vulnerability in the host by abusing the disk driver that may lead to the disclosure of the host memory into the virtualized guest. This issue is fixed in commit cf60095a4d8c3cb2e182a14415467afd356e982f.
INFO
Published Date :
Feb. 20, 2023, 5:15 p.m.
Last Modified :
March 1, 2023, 6:03 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
4.0
Exploitability Score :
2.5
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-2021-32847.
| URL | Resource |
|---|---|
| https://github.com/moby/hyperkit/blob/2f061e447e1435cdf1b9eda364cea6414f2c606b/src/lib/pci_virtio_block.c#L316 | Exploit Product |
| https://github.com/moby/hyperkit/commit/cf60095a4d8c3cb2e182a14415467afd356e982f | Patch |
| https://securitylab.github.com/advisories/GHSL-2021-058-moby-hyperkit/ | Exploit 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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-32847 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-32847 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 -
Initial Analysis by [email protected]
Mar. 01, 2023
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N Changed Reference Type https://github.com/moby/hyperkit/blob/2f061e447e1435cdf1b9eda364cea6414f2c606b/src/lib/pci_virtio_block.c#L316 No Types Assigned https://github.com/moby/hyperkit/blob/2f061e447e1435cdf1b9eda364cea6414f2c606b/src/lib/pci_virtio_block.c#L316 Exploit, Product Changed Reference Type https://github.com/moby/hyperkit/commit/cf60095a4d8c3cb2e182a14415467afd356e982f No Types Assigned https://github.com/moby/hyperkit/commit/cf60095a4d8c3cb2e182a14415467afd356e982f Patch Changed Reference Type https://securitylab.github.com/advisories/GHSL-2021-058-moby-hyperkit/ No Types Assigned https://securitylab.github.com/advisories/GHSL-2021-058-moby-hyperkit/ Exploit, Third Party Advisory Added CWE NIST CWE-125 Added CPE Configuration OR *cpe:2.3:a:mobyproject:hyperkit:*:*:*:*:*:*:*:* versions up to (including) 0.20210107
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-32847 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-2021-32847
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.05 }} 0.01%
score
0.20741
percentile