CVE-2021-20295
Red Hat Enterprise Linux QEMU-KVM Privilege Escalation Vulnerability
Description
It was discovered that the update for the virt:rhel module in the RHSA-2020:4676 (https://access.redhat.com/errata/RHSA-2020:4676) erratum released as part of Red Hat Enterprise Linux 8.3 failed to include the fix for the qemu-kvm component issue CVE-2020-10756, which was previously corrected in virt:rhel/qemu-kvm via erratum RHSA-2020:4059 (https://access.redhat.com/errata/RHSA-2020:4059). CVE-2021-20295 was assigned to that Red Hat specific security regression. For more details about the original security issue CVE-2020-10756, refer to bug 1835986 or the CVE page: https://access.redhat.com/security/cve/CVE-2020-10756.
INFO
Published Date :
April 1, 2022, 11:15 p.m.
Last Modified :
Oct. 6, 2022, 2:32 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
4.0
Exploitability Score :
2.0
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-2021-20295.
| URL | Resource |
|---|---|
| https://access.redhat.com/security/cve/CVE-2020-10756 | Vendor Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=1944075 | Issue Tracking Vendor Advisory |
| https://security.netapp.com/advisory/ntap-20220519-0003/ | 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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-20295 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-20295 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]
Oct. 06, 2022
Action Type Old Value New Value Changed Reference Type https://security.netapp.com/advisory/ntap-20220519-0003/ No Types Assigned https://security.netapp.com/advisory/ntap-20220519-0003/ Third Party Advisory -
CVE Modified by [email protected]
May. 19, 2022
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20220519-0003/ [No Types Assigned] -
Initial Analysis by [email protected]
Apr. 08, 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:C/C:H/I:N/A:N Changed Reference Type https://access.redhat.com/security/cve/CVE-2020-10756 No Types Assigned https://access.redhat.com/security/cve/CVE-2020-10756 Vendor Advisory Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1944075 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1944075 Issue Tracking, Vendor Advisory Added CWE NIST CWE-125 Added CPE Configuration OR *cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* versions up to (excluding) 4.2.0-34
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-20295 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-2021-20295
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
0.14484
percentile