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Debian LinuxOperating system · Debian

CVE-2022-21293

MEDIUM · 5.3 CVSS v3.1 Published 2022-01-19
Fix available
A fix is available. Upgrade to after 15.0.5 or later.
See remediation →
62/100
Remediation priority · Elevated
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
Vulnerability in the Oracle Java SE, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Libraries). Supported versions that are affected are Oracle Java SE: 7u321, 8u311, 11.0.13, 17.0.1; Oracle GraalVM Enterprise Edition: 20.3.4 and 21.3.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Java SE, Oracle GraalVM Enterprise Edition. Note: This vulnerability applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. This vulnerability can also be exploited by using APIs in the specified Component, e.g., through a web service which supplies data to the APIs. CVSS 3.1 Base Score 5.3 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L).

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 confidence

CVE-2022-21293 is a denial-of-service vulnerability in the Libraries component of Oracle Java SE and Oracle GraalVM Enterprise Edition. An unauthenticated remote attacker can exploit this vulnerability via multiple network protocols to cause partial denial of service. The vulnerability affects Java deployments that run untrusted code through sandboxed applets or Web Start applications, or through APIs that process external data.

MitigationApply Oracle security patches for CVE-2022-21293 by updating to Oracle Java SE 7u331/8u321/11.0.14/17.0.2 or later, and GraalVM Enterprise Edition 20.3.5/21.3.1 or later. Prioritize systems running untrusted code or exposed APIs.

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
Debian LinuxOperating system
Affected:= 9.0= 10.0= 11.0
FedoraOperating system
Affected:= 34
OpenjdkApplication
Affected:>= 11, <= 11.0.13>= 13, <= 13.0.9>= 15, <= 15.0.5= 7= 8= 17= 17.0.1
GraalvmApplication
Affected:= 20.3.4= 21.3.0
JdkApplication
Affected:= 1.7.0= 1.8.0= 11.0.13= 17.0.1
JreApplication
Affected:= 1.7.0= 1.8.0= 11.0.13= 17.0.1
7 Mode Transition ToolApplication
Affected:all versions
Active Iq Unified ManagerApplication
Affected:all versions

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
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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 checks

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

  1. Identify installed Java/JRE/JDK version
    Run 'java -version' or 'java -fullversion' from command line to display the installed Java version information
    Affected if The version output shows 7, 8, 11.0.13, 13.0.9, 15.0.5, 17.0.1, or any version in ranges 11.0-11.0.13, 13.0-13.0.9, 15.0-15.0.5 (note: only the exact versions listed in the affected ranges are vulnerable)
  2. Identify installed Oracle GraalVM version
    Run 'graalvm --version' or check the installation directory for version markers to determine the GraalVM Enterprise Edition version
    Affected if The version shows 20.3.4 or 21.3.0 (exact versions listed)
  3. Check for OpenJDK installation and version
    Run 'rpm -q openjdk' or 'dpkg -l openjdk' on Linux systems, or check the JAVA_HOME environment variable and inspect the release file in the JDK directory
    Affected if OpenJDK version matches 7, 8, 11.0.13, 13.0.9, 15.0.5, 17, or 17.0.1 (exact versions listed)
  4. Determine if untrusted code execution is configured
    Review Java deployment configuration files (deployment.properties, .java.policy) and check for applet or Web Start launcher configurations in the system
    Affected if Sandboxed applets, Web Start applications, or code execution policies that allow running untrusted code are enabled on the Java installation
  5. Identify external-facing Java API services
    Audit running Java processes and applications for API endpoints that accept or process external data, particularly network-facing services
    Affected if The Java deployment runs network-accessible APIs or services that process data from untrusted external sources

You are affected if your environment runs any of the listed Java SE, OpenJDK, or GraalVM versions AND executes untrusted code via applets, Web Start, or external-facing APIs.

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 a release after 15.0.5
Interim mitigation

Apply Oracle security patches for CVE-2022-21293 by updating to Oracle Java SE 7u331/8u321/11.0.14/17.0.2 or later, and GraalVM Enterprise Edition 20.3.5/21.3.1 or later. Prioritize systems running untrusted code or exposed APIs.

Recommended fix High confidence

Oracle Java SE 17.0.2+ / 11.0.14+ / 8u321+ / 7u331+; GraalVM Enterprise 20.3.5+ / 21.3.1+; or distribution-provided OpenJDK packages with security updates

  1. Identify the currently installed Java version using 'java -version'
  2. For Debian: Run 'apt update' then 'apt upgrade' to get the latest OpenJDK packages from Debian repositories
  3. For Fedora: Run 'dnf update' to obtain the latest patched OpenJDK packages
  4. For Oracle JDK/JRE: Download and install the latest Oracle JDK/JRE from Oracle's official website (at least 17.0.2, 11.0.14, 8u321, or 7u331)
  5. For GraalVM: Upgrade to GraalVM 20.3.5 or later, or 21.3.1 or later
  6. Verify the fix by running 'java -version' and confirming the updated version number
  7. Restart any Java applications to ensure they use the patched JRE/JDK
Caveat Upgrading major Java versions (e.g., 8 to 11 or 11 to 17) may introduce compatibility issues with existing applications due to removed APIs; test thoroughly before production deployment

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

Fix this in Debian Linux Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA2.0 h
20.0 hours of engineering $3,500
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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-2022-21293 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