CVE-2021-20201
Spice DoS Renegotiation Vulnerability
Description
A flaw was found in spice in versions before 0.14.92. A DoS tool might make it easier for remote attackers to cause a denial of service (CPU consumption) by performing many renegotiations within a single connection.
INFO
Published Date :
May 28, 2021, 11:15 a.m.
Last Modified :
Nov. 21, 2024, 5:46 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
1.4
Exploitability Score :
3.9
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-2021-20201.
| URL | Resource |
|---|---|
| https://blog.qualys.com/product-tech/2011/10/31/tls-renegotiation-and-denial-of-service-attacks | Exploit Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=1921846 | Issue Tracking Third Party Advisory |
| https://security.gentoo.org/glsa/202208-10 | Third Party Advisory |
| https://blog.qualys.com/product-tech/2011/10/31/tls-renegotiation-and-denial-of-service-attacks | Exploit Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=1921846 | Issue Tracking Third Party Advisory |
| https://security.gentoo.org/glsa/202208-10 | 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-2021-20201 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-20201 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://blog.qualys.com/product-tech/2011/10/31/tls-renegotiation-and-denial-of-service-attacks Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=1921846 Added Reference https://security.gentoo.org/glsa/202208-10 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Oct. 21, 2022
Action Type Old Value New Value Changed Reference Type https://security.gentoo.org/glsa/202208-10 No Types Assigned https://security.gentoo.org/glsa/202208-10 Third Party Advisory Added CWE NIST NVD-CWE-Other -
CVE Modified by [email protected]
Aug. 10, 2022
Action Type Old Value New Value Added Reference https://security.gentoo.org/glsa/202208-10 [No Types Assigned] -
Reanalysis by [email protected]
Jun. 04, 2021
Action Type Old Value New Value Removed CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L -
Initial Analysis by [email protected]
Jun. 02, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://blog.qualys.com/product-tech/2011/10/31/tls-renegotiation-and-denial-of-service-attacks No Types Assigned https://blog.qualys.com/product-tech/2011/10/31/tls-renegotiation-and-denial-of-service-attacks Exploit, Third Party Advisory Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1921846 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1921846 Issue Tracking, Third Party Advisory Added CPE Configuration OR *cpe:2.3:a:spice_project:spice:*:*:*:*:*:*:*:* versions up to (excluding) 0.14.92 Added CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-20201 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-2021-20201
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.46 }} -0.08%
score
0.75018
percentile