CVE-2013-3774
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 Layer component in Oracle Database Server 10.2.0.4, 10.2.0.5, 11.1.0.7, 11.2.0.2, 11.2.0.3, and 12.1.0.1 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 confidenceVulnerability in the Network Layer of Oracle Database Server allows remote attackers to impact confidentiality, integrity, and availability through unknown vectors. Affects versions 10.2.0.4 through 12.1.0.1.
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= 10.2.0.4= 10.2.0.5= 11.1.0.7= 11.2.0.2= 11.2.0.3CVSS 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
- High
- Authentication
- None
- Confidentiality
- Complete
- Integrity
- Complete
- Availability
- Complete
AV:N/AC:H/Au:N/C:C/I:C/A:C
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 installed Oracle Database versionQuery the database by connecting via SQL*Plus or SQL developer and running: SELECT VERSION FROM V$INSTANCE; or check the Oracle binaries in $ORACLE_HOME/bin/oracle (Unix) or ORACLE_HOME\bin\oracle.exe (Windows)Affected if The version matches 10.2.0.4, 10.2.0.5, 11.1.0.7, 11.2.0.2, or 11.2.0.3, or falls within 10.2.0.4 through 12.1.0.1
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Verify Oracle Network Layer (TNS Listener) is enabledRun 'lsnrctl status' from the command line to check if the TNS Listener service is running and accessible, or check if the listener process (tnslsnr) is active on the systemAffected if The TNS Listener is running and accepting network connections
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Confirm network accessibility of the database listenerCheck listener.ora configuration file in $ORACLE_HOME/network/admin/ and verify the LISTENER is configured with valid HOST and PORT settings, then attempt a network connection to the database host on the configured port (default 1521)Affected if The listener is configured with a reachable network address and accepts remote connections
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Review Oracle Net Services configurationExamine the sqlnet.ora file in $ORACLE_HOME/network/admin/ for authentication and encryption settings, and review tnsnames.ora for defined network service namesAffected if Network layer services are configured and operational
The environment is affected if an Oracle Database version between 10.2.0.4 and 12.1.0.1 is installed AND the Oracle Network Layer/TNS Listener is enabled and accessible over the network.
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; consider upgrading to a supported Oracle Database version if the affected versions are no longer under support.
- Consultation4.0 h
- Implementation8.0 h
- Testing12.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2013-3774 — 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-2013-3774 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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