CVE-2019-4340
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 · uneditedIBM Security Guardium Big Data Intelligence 4.0 (SonarG) is vulnerable to an XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources. IBM X-Force ID: 161419.
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 confidenceIBM Security Guardium Big Data Intelligence 4.0 (SonarG) is vulnerable to XML External Entity Injection (XXE) when processing XML data. A remote attacker can exploit this to read sensitive files from the server or cause memory exhaustion (Denial of Service).
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= 4.0CVSS 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
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- Low
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L
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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Verify IBM Security Guardium Big Data Intelligence installationLocate the Guardium Big Data Intelligence (SonarG) installation directory and check for version information files or use system inventory tools to identify if the product is installed.Affected if IBM Security Guardium Big Data Intelligence version 4.0 is installed.
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Confirm installed version is 4.0Check the product version by examining version files in the installation directory, using the product's built-in version command, or querying the software inventory.Affected if The installed version is exactly 4.0.
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Identify XML processing componentsSearch for XML parser libraries or modules within the Guardium Big Data Intelligence installation directory, particularly in lib, bin, or configuration folders.Affected if XML parsing libraries or components are present in the installation.
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Check for XML data intake featuresInspect the product configuration for any XML import, upload, or data processing capabilities, particularly features that accept XML files or XML-formatted data streams.Affected if XML data import or processing features are enabled or configurable.
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Review XML parser configurationExamine XML parser configuration files or settings within the product to determine if external entity processing (DTD processing) is allowed or enabled.Affected if External entity processing or DTD processing is enabled in the XML parser configuration.
A user is affected if IBM Security Guardium Big Data Intelligence version 4.0 is installed and XML data processing features with external entity support are in use.
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 dataDisable external entity processing in XML parsers, implement strict input validation for XML data, and apply vendor patches when available. Use less complex XML parsers and disable DTD processing.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2019-4340 — 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-2019-4340 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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