CVE-2021-20613: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-4mv5-vjxv-hh3h
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CWE-665
Published
Advisory Summary

CVE-2021-20613 is a HIGH security vulnerability vulnerability (CWE-665: Improper Initialization) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product does not initialize or incorrectly initializes a resource, which might leave the resource in an unexpected state when it is accessed or used.. Remediation is available in the latest vendor maintenance releases.

CVE-2021-20613 at a Glance

CVE Identifier CVE-2021-20613
GHSA Identifier GHSA-4mv5-vjxv-hh3h
Severity HIGH
CVSS v3.1 Base Score N/A
CWE Classification CWE-665: Improper Initialization
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

How to Fix CVE-2021-20613

To remediate this vulnerability, upgrade all affected Software dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2021-20613, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree

Analyze the terminal output to locate any version of Software in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The mvn dependency:tree command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-665: Improper Initialization, where the product does not initialize or incorrectly initializes a resource, which might leave the resource in an unexpected state when it is accessed or used. In Software, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

Improper initialization vulnerability in MELSEC-F series FX3U-ENET Firmware version 1.16 and prior, FX3U-ENET-L Firmware version 1.16 and prior and FX3U-ENET-P502 Firmware version 1.16 and prior allows a remote unauthenticated attacker to cause a denial-of-service (DoS) condition in communication function of the product by sending specially crafted packets. Control by MELSEC-F series PLC is not affected by this vulnerability, but system reset is required for recovery.

References

NVD — CVE-2021-20613 NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-20613
jvn.jp/vu/jvnvu93268332/in... WEB
https://jvn.jp/vu/JVNVU93268332/index.html
www.cisa.gov/uscert/ics/advisori... WEB
https://www.cisa.gov/uscert/ics/advisories/icsa-22-013-07
www.mitsubishielectric.com/en/psirt/vulnerabil... WEB
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-024_en.pdf

Frequently Asked Questions

What is CVE-2021-20613?
CVE-2021-20613 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-665: Improper Initialization.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2021-20613?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2021-20613?
CVE-2021-20613 is classified under CWE-665: Improper Initialization (The product does not initialize or incorrectly initializes a resource, which might leave the resource in an unexpected state when it is accessed or used.).
How can I check Maven dependencies for CVE-2021-20613?
Run the dependency tree command: 'mvn dependency:tree'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-4mv5-vjxv-hh3h",
  "modified" : "2022-01-22T00:02:08Z",
  "published" : "2022-01-15T00:01:33Z",
  "aliases" : [ "CVE-2021-20613" ],
  "details" : "Improper initialization vulnerability in MELSEC-F series FX3U-ENET Firmware version 1.16 and prior, FX3U-ENET-L Firmware version 1.16 and prior and FX3U-ENET-P502 Firmware version 1.16 and prior allows a remote unauthenticated attacker to cause a denial-of-service (DoS) condition in communication function of the product by sending specially crafted packets. Control by MELSEC-F series PLC is not affected by this vulnerability, but system reset is required for recovery.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2021-20613"
  }, {
    "type" : "WEB",
    "url" : "https://jvn.jp/vu/JVNVU93268332/index.html"
  }, {
    "type" : "WEB",
    "url" : "https://www.cisa.gov/uscert/ics/advisories/icsa-22-013-07"
  }, {
    "type" : "WEB",
    "url" : "https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-024_en.pdf"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-665" ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2022-01-14T20:15:00Z"
  }
}