CVE-2009-1019
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedUnspecified vulnerability in the Network Authentication component in Oracle Database 9.2.0.8, 9.2.0.8DV, 10.1.0.5, 10.2.0.4, and 11.1.0.7 allows remote attackers to affect confidentiality, integrity, and availability via unknown vectors.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceUnspecified vulnerability in Oracle Database Network Authentication component affecting versions 9.2.0.8 through 11.1.0.7 allows remote attackers to impact confidentiality, integrity, and availability via unknown attack vectors. The CVSS 7.5 indicates high severity with network-exploitable authentication weakness.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data= 9.2.0.8= 9.2.0.8dv= 10.1.0.4= 10.1.0.5= 11.1.0.7CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Authentication
- None
- Confidentiality
- Partial
- Integrity
- Partial
- Availability
- Partial
AV:N/AC:L/Au:N/C:P/I:P/A:P
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify the Oracle Database server versionConnect to the database as SYSDBA and execute: SELECT version FROM v$instance; Or check the Oracle inventory or installation logs for the exact release version.Affected if The installed version matches 9.2.0.8, 9.2.0.8dv, 10.1.0.4, 10.1.0.5, or 11.1.0.7 exactly.
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Verify Oracle Net (SQL*Net) configuration is in useCheck for existence of listener.ora, tnsnames.ora, or sqlnet.ora files in $ORACLE_HOME/network/admin/. Also verify the TNS Listener process is running.Affected if Oracle Net is configured and the listener is active, as the vulnerability resides in the Network Authentication component.
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Confirm network exposure of the databaseCheck if the listener is bound to a network interface accessible from remote systems. Use lsnrctl status or check listener.ora for HOST settings. Review firewall rules and database server network accessibility.Affected if The database listener accepts remote connections, as the CVSS indicates a network-exploitable vector.
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Review authentication settings in sqlnet.oraExamine the sqlnet.ora file in $ORACLE_HOME/network/admin/ for authentication parameters such as SQLNET.AUTHENTICATION_SERVICES, which controls authentication methods.Affected if The default Oracle authentication services are in use without restrictive configuration changes.
Your environment is affected if the Oracle Database version matches exactly 9.2.0.8, 9.2.0.8dv, 10.1.0.4, 10.1.0.5, or 11.1.0.7 AND the database is accessible over the network with Oracle Net enabled.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataApply Oracle Critical Patch Updates for the affected versions, or upgrade to a currently supported Oracle Database release. Since affected versions include very old releases (9i, early 10g), upgrading to a supported version may be necessary if patches are unavailable.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,600.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2009-1019 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2009-1019 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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