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CVE-2009-4022

UnknownEPSS 7.95%

Last modified

CVE-2009-4022 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 7.95% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability
7.95%

94.0th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersionsUpdate
IscBind9.0—
IscBind9.0.0Rc1
IscBind9.0.1—
IscBind9.1—
IscBind9.1.0Rc1
IscBind9.1.1—
IscBind9.1.2—
IscBind9.1.3—
IscBind9.2—
IscBind9.2.0—
IscBind9.2.1—
IscBind9.2.2—
IscBind9.2.3—
IscBind9.2.4—
IscBind9.2.5—
IscBind9.2.6—
IscBind9.2.7—
IscBind9.2.8—
IscBind9.2.9—
IscBind9.3—
IscBind9.3.0—
IscBind9.3.1—
IscBind9.3.2—
IscBind9.3.3—
IscBind9.3.4—
IscBind9.3.5—
IscBind9.3.6—
IscBind9.4.0—
IscBind9.4.1—
IscBind9.4.2—
IscBind9.4.3—
IscBind9.5.0—
IscBind9.5.1—
IscBind9.5.2—
IscBind9.6.0—
IscBind9.6.1—
IscBind9.7.0—

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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 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.
How severe is CVE-2009-4022?
Severity scoring for CVE-2009-4022 is pending analysis. The EPSS model estimates a 7.95% probability of exploitation in the next 30 days.
How do I fix CVE-2009-4022?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2009-4022?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST