CVE-2021-20201
spice: Client initiated renegotiation denial of service
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
1Exploited in Wild
-Decision
Descriptions
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.
Se encontró un fallo en spice en versiones anteriores a 0.14.92. Una herramienta DoS podría facilitar a atacantes remotos causar una denegación de servicio (consumo de CPU) al llevar a cabo muchas renegociaciones dentro de una sola conexión
A flaw was found in spice. 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.
The Simple Protocol for Independent Computing Environments is a remote display system built for virtual environments which allows the user to view a computing 'desktop' environment not only on the machine where it is running, but from anywhere on the Internet and from a wide variety of machine architectures. Issues addressed include a denial of service vulnerability.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2020-12-17 CVE Reserved
- 2021-05-19 CVE Published
- 2024-08-03 CVE Updated
- 2024-08-03 First Exploit
- 2025-03-30 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-400: Uncontrolled Resource Consumption
CAPEC
References (4)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|---|---|
| https://blog.qualys.com/product-tech/2011/10/31/tls-renegotiation-and-denial-of-service-attacks | 2024-08-03 |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1921846 | 2021-05-18 | |
| https://security.gentoo.org/glsa/202208-10 | 2022-10-21 | |
| https://access.redhat.com/security/cve/CVE-2021-20201 | 2021-05-18 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Spice Project Search vendor "Spice Project" | Spice Search vendor "Spice Project" for product "Spice" | < 0.14.92 Search vendor "Spice Project" for product "Spice" and version " < 0.14.92" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux" | 6.0 Search vendor "Redhat" for product "Enterprise Linux" and version "6.0" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux" | 7.0 Search vendor "Redhat" for product "Enterprise Linux" and version "7.0" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux" | 8.0 Search vendor "Redhat" for product "Enterprise Linux" and version "8.0" | - |
Affected
| ||||||