CVE-2021-20201

Public Exploit

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.

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.17%
Vendor Advisory gentoo.org
Affected: n/a spice
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1921846 issue tracking third party advisory
https://blog.qualys.com/product-tech/2011/10/31/tls-renegotiation-and-denial-of-service-attacks third party advisory exploit
https://security.gentoo.org/glsa/202208-10 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-20201?
CVE-2021-20201 has been scored as a medium severity vulnerability.
How to fix CVE-2021-20201?
To fix CVE-2021-20201, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-20201 being actively exploited in the wild?
It is possible that CVE-2021-20201 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-20201?
CVE-2021-20201 affects n/a spice.
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