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CVE-2009-4022

2.6 · LOW

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 di…

Published Nov 25, 2009iscEPSS 7.95%

Overview

CVE-2009-4022 is a low-severity vulnerability affecting isc bind. It was published on November 25, 2009 and has a CVSS 2.0 base score of 2.6 (LOW).

This vulnerability has a CVSS 2.0 base score of 2.6, rated LOW. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories and patches from isc. Update bind to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus

References

Refftp://ftp.sco.com/pub/unixware7/714/security/p535243_uw7/p535243b.txtRefaix.software.ibm.com/aix/efixes/security/bind9_advisory.ascReflists.apple.com/archives/Security-announce/2011//Oct/msg00003.htmlReflists.vmware.com/pipermail/security-announce/2010/000082.htmlRefosvdb.org/60493Refsecunia.com/advisories/37426Refsecunia.com/advisories/37491Refsecunia.com/advisories/38219Refsecunia.com/advisories/38240Refsecunia.com/advisories/38794

How CyberStrike helps

Frequently asked questions

What is CVE-2009-4022?

CVE-2009-4022 is a low-severity vulnerability affecting isc bind. It was published on November 25, 2009 and has a CVSS 2.0 base score of 2.6 (LOW).

How severe is CVE-2009-4022?

This vulnerability has a CVSS 2.0 base score of 2.6, rated LOW. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2009-4022?

Check the references section for vendor advisories and patches from isc. Update bind to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2009-4022?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2009-4022 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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