CVE-2009-0234

Severity: medium (CVSS 6.4 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 34.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2009-03-11 · updated 2026-06-16
Weakness: CWE-20

Description

The DNS Resolver Cache Service (aka DNSCache) in Windows DNS Server in Microsoft Windows 2000 SP4, Server 2003 SP1 and SP2, and Server 2008 does not properly cache crafted DNS responses, which makes it easier for remote attackers to predict transaction IDs and poison caches by sending many crafted DNS queries that trigger "unnecessary lookups," aka "DNS Server Response Validation Vulnerability."

Affected products

Microsoft Windows 2000: all versions
Microsoft Windows Server 2003: all versions
Microsoft Windows Server 2008: all versions

References

http://blogs.technet.com/srd/archive/2009/03/13/ms09-008-dns-and-wins-server-security-update-in-more-detail.aspx
http://osvdb.org/52518
http://secunia.com/advisories/34217
http://support.avaya.com/elmodocs2/security/ASA-2009-083.htm
http://www.kb.cert.org/vuls/id/319331
http://www.securityfocus.com/bid/33988
http://www.securitytracker.com/id?1021831
http://www.us-cert.gov/cas/techalerts/TA09-069A.html
http://www.vupen.com/english/advisories/2009/0661
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-008
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5715
http://blogs.technet.com/srd/archive/2009/03/13/ms09-008-dns-and-wins-server-security-update-in-more-detail.aspx

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