Resource exhaustion in Spice Project
CVE-2021-20201
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.
Vulnerability class: DoS (Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.027 (85.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 85.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.027 · newest: 0.027 · change: 0.000
Affected products
- Spice Project
- Red Hat Enterprise Linux — versions 6.0, 7.0, 8.0
- Spice — versions spice 0.14.92
Weakness classification (CWE)
Public proof-of-concept exploits
References
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- blog.qualys.com/product-tech/2011/10/31/tls-renegotiation-and-denial-of-service… (Exploit, Third Party Advisory)
- security.gentoo.org/glsa/202208-10 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-20201?
- CVE-2021-20201 is a medium-severity vulnerability in Spice Project, classified under Uncontrolled Resource Consumption. CVSS score: 5.3/10. Published 2021-05-28.
- How severe is CVE-2021-20201?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2021-20201 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.