Jboss Core ServicesApplication · Redhat
CVE-2016-9598
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 · uneditedlibxml2, as used in Red Hat JBoss Core Services, allows context-dependent attackers to cause a denial of service (out-of-bounds read and application crash) via a crafted XML document. NOTE: this vulnerability exists because of a missing fix for CVE-2016-4483.
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 · high confidenceOut-of-bounds read vulnerability in libxml2 (used in Red Hat JBoss Core Services) triggered by specially crafted XML documents, leading to denial of service. This is a regression/incomplete fix stemming from missing patches for CVE-2016-4483.
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
Jboss Core ServicesApplication
all versions< 2.9.4CVSS 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
- Required
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
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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Check installed libxml2 versionRun 'rpm -qa | grep libxml2' or 'xml2 --version' to identify the libxml2 library version installed on the systemAffected if The libxml2 version is lower than 2.9.4
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Identify JBoss Core Services installationRun 'rpm -qa | grep -i jboss-core' or check for JBoss installation directories such as /opt/jboss/ or /usr/share/jboss*/Affected if Red Hat JBoss Core Services is installed on the system
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Verify XML parsing functionality is exposedReview deployed applications and JBoss configuration files for XML processing modules or services that use libxml2 for parsingAffected if Applications running on JBoss accept or process XML input
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Confirm library linkageUse 'ldd' on JBoss Java processes or check 'find /usr -name "libxml2*" -type f' to confirm the vulnerable libxml2 library is loaded by JBoss componentsAffected if JBoss processes are linked to a libxml2 version below 2.9.4
The environment is affected if Red Hat JBoss Core Services is present and linked to a libxml2 version lower than 2.9.4, and the system processes XML documents through the vulnerable code path.
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 data2.9.4
Update libxml2 to a patched version that addresses this vulnerability and properly includes the CVE-2016-4483 fix. Alternatively, apply the missing bounds-checking patch.
Fix this in Jboss Core Services
Scoped from the published advisory
- Consultation2.0 h
- Implementation2.0 h
- Testing4.0 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 $2,752.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2016-9598 — 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-2016-9598 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
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