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OpenjdkApplication · Oracle

CVE-2021-35567

MEDIUM · 6.8 CVSS v3.1 Published 2021-10-20
Fix available
A fix is available. Upgrade to after 11.50.2 or later.
See remediation →
72/100
Remediation priority · Elevated
Remotely reachable Patch available

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 Java SE, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Libraries). Supported versions that are affected are Java SE: 8u301, 11.0.12, 17; Oracle GraalVM Enterprise Edition: 20.3.3 and 21.2.0. Easily exploitable vulnerability allows low privileged attacker with network access via Kerberos to compromise Java SE, Oracle GraalVM Enterprise Edition. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Java SE, Oracle GraalVM Enterprise Edition, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Java SE, Oracle GraalVM Enterprise Edition accessible data. 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 6.8 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N).

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

A detailed technical summary for this CVE is being prepared.

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
OpenjdkApplication
Affected:= 8= 11= 11.0.1= 11.0.2= 11.0.3= 11.0.4= 11.0.5= 11.0.6= 11.0.7= 11.0.8= 11.0.9= 11.0.10
Debian LinuxOperating system
Affected:= 9.0= 10.0= 11.0
FedoraOperating system
Affected:= 33= 34= 35
GraalvmApplication
Affected:= 20.3.3= 21.2.0
JdkApplication
Affected:= 1.8.0= 11.0.12= 17
JreApplication
Affected:= 1.8.0= 11.0.12= 17
Active Iq Unified ManagerApplication
Affected:all versions
E Series Santricity Os ControllerApplication
Affected:>= 11.0.0, <= 11.50.2

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
Low
User interaction
Required
Scope
Changed
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N

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 11.50.2
Vendor patch www.oracle.com →
Recommended fix High confidence

Oracle Java SE 8u311/8u312, 11.0.13+, 17.0.1+ | OpenJDK 8u312, 11.0.13+, 17.0.1+ | GraalVM Enterprise Edition 20.3.4 or 21.3.0+

  1. 1. Identify the current Java/JDK version installed by running `java -version` or `javac -version`
  2. 2. For Oracle Java SE: Download and install the October 2021 CPU patch from Oracle's official Java SE download page
  3. 3. For OpenJDK: Update via system package manager: `apt update && apt upgrade openjdk-*` (Debian) or `dnf upgrade java-*` (Fedora)
  4. 4. For GraalVM Enterprise Edition: Upgrade to version 20.3.4 or 21.3.0 (or later) from Oracle's GraalVM downloads
  5. 5. Verify the upgrade was successful by running `java -version` and confirming the version matches the fixed release
  6. 6. Restart any running Java applications to ensure they use the updated JVM
Caveat Minor; this is a security patch. Some very old Kerberos configurations relying on vulnerable behavior may need updating, but standard deployments will not be affected

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

We can identify the exact fixed release, upgrade, and verify it in staging — typical engagement from $1,600. Get the upgrade done

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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-2021-35567 in production — separate from our analysis above.

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