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Ubuntu LinuxOperating system · Canonical

CVE-2014-0456

HIGH · 10.0 CVSS v2.0 Published 2014-04-16
Fix available
A fix is available. Upgrade to 4.0.0.3 / 8.0.1.1 or later.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

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 · unedited
Unspecified vulnerability in Oracle Java SE 6u71, 7u51, and 8, and Java SE Embedded 7u51, allows remote attackers to affect confidentiality, integrity, and availability via unknown vectors related to Hotspot.

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 confidence

Critical unspecified vulnerability in Oracle Java SE's Hotspot JVM component affecting versions 6u71, 7u51, 8 and Java SE Embedded 7u51. Allows remote attackers to achieve complete compromise of confidentiality, integrity, and availability through unknown vectors in the Hotspot JIT compiler subsystem.

MitigationImmediately update affected Java installations to the latest patched version. Prioritize internet-facing systems and servers running Java applets or embedded Java applications.

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
Ubuntu LinuxOperating system
Affected:= 10.04= 12.04= 12.10= 13.10= 14.04
Debian LinuxOperating system
Affected:= 6.0= 7.0= 8.0
JrockitApplication
Affected:= r27.8.1= r28.3.1
Junos SpaceApplication
Affected:< 15.1
JdkApplication
Affected:= 1.5.0= 1.6.0= 1.7.0= 1.8.0
JreApplication
Affected:= 1.5.0= 1.6.0= 1.7.0= 1.8.0
Forms ViewerApplication
Affected:>= 4.0.0, < 4.0.0.3>= 8.0.0, < 8.0.1.1

CVSS 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
Complete
Integrity
Complete
Availability
Complete

AV:N/AC:L/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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify installed Java version
    Run `java -version` or `java -fullversion` to obtain the exact JRE/JDK version string
    Affected if Version is 1.5.0, 1.6.0, 1.7.0, or 1.8.0 (any update within these major versions)
  2. Check Java update version number
    For JDK 1.6.x, 1.7.x, 1.8.x, run `java -verbose` or check the installation directory for the update release notes. On Debian/Ubuntu, check `/usr/lib/jvm/` for version folders or use `update-alternatives --display java`
    Affected if Update version is 6u71, 7u51, or 8 (any update at or between these points)
  3. Verify Hotspot JVM is in use
    Run `java -version` and look for 'HotSpot' in the output, or run `java -XshowSettings:all 2>&1 | grep -i hotspot`
    Affected if The JVM implementation shown is HotSpot (the vulnerability is specific to the Hotspot JIT compiler)
  4. Check Oracle JRockit installation
    If JRockit is present, run `java -version` and look for 'JRockit' in the output. Check installation paths like `/usr/lib/jvm/` or Oracle middleware directories for JRockit binaries
    Affected if Version is r27.8.1 or r28.3.1
  5. Check IBM Forms Viewer version
    On systems with IBM Forms Viewer, run the viewer with `--version` or check the installation directory for version files. On Windows, check Add/Remove Programs for IBM Forms Viewer version
    Affected if Version is >= 4.0.0 but < 4.0.0.3, or >= 8.0.0 but < 8.0.1.1

You are affected if you run any Java installation matching versions 1.5.0, 1.6.0, 1.7.0, or 1.8.0 with the Hotspot JVM (including JRockit r27.8.1/r28.3.1) OR IBM Forms Viewer versions in the vulnerable ranges, particularly if your Java update version is 6u71, 7u51, or 8.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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.

dbcve · scoped
Upgrade available Upgrade to 4.0.0.3 / 8.0.1.1 / 15.1 or later
Fixed in 4.0.0.38.0.1.115.1
Interim mitigation

Immediately update affected Java installations to the latest patched version. Prioritize internet-facing systems and servers running Java applets or embedded Java applications.

Recommended fix High confidence

Java SE 6u75+, Java SE 7u55+, or Java SE 8u5+ (or latest available stable release)

  1. Identify all Java installations on the system using 'java -version' and checking /usr/lib/jvm/ or similar directories
  2. For Oracle Java: Download and install Java SE 6u75 or later, Java 7u55 or later, or Java 8u5 or later from the Oracle Java Download page
  3. For Ubuntu/Debian: Run 'sudo apt-get update' followed by 'sudo apt-get upgrade' to receive the patched openjdk packages
  4. For Red Hat systems: Run 'sudo yum update java-*' to apply security patches
  5. After upgrading, verify the new version with 'java -version' and ensure it is no longer in the affected versions list
  6. Restart any running Java applications or services to ensure they use the updated Java runtime
Caveat Major version upgrades (e.g., 1.6 to 1.7 or 1.7 to 1.8) may introduce breaking API changes; test applications thoroughly before deploying to production

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Ubuntu Linux Scoped from the published advisory
  • Consultation1.0 h
  • Implementation2.0 h
  • Testing2.0 h
  • Review / QA1.0 h
6.0 hours of engineering $1,040
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Scan for this in your stack

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2014-0456 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • 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
  • No spam, self-promotion, credentials, or personal data