CVE-2021-20870: Software Security Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-6c2h-x2jr-x8w2
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CWE-755
Published
Advisory Summary

CVE-2021-20870 is a MODERATE security vulnerability vulnerability (CWE-755: Improper Handling of Exceptional Conditions) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product does not handle or incorrectly handles an exceptional condition.. Remediation is available in the latest vendor maintenance releases.

CVE-2021-20870 at a Glance

CVE Identifier CVE-2021-20870
GHSA Identifier GHSA-6c2h-x2jr-x8w2
Severity MODERATE
CVSS v3.1 Base Score N/A
CWE Classification CWE-755: Improper Handling of Exceptional Conditions
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

How to Fix CVE-2021-20870

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-2021-20870, 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-755: Improper Handling of Exceptional Conditions, where the product does not handle or incorrectly handles an exceptional condition. 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 handling of exceptional conditions vulnerability in KONICA MINOLTA bizhub series (bizhub C750i G00-35 and earlier, bizhub C650i/C550i/C450i G00-B6 and earlier, bizhub C360i/C300i/C250i G00-B6 and earlier, bizhub 750i/650i/550i/450i G00-37 and earlier, bizhub 360i/300i G00-33 and earlier, bizhub C287i/C257i/C227i G00-19 and earlier, bizhub 306i/266i/246i/226i G00-B6 and earlier, bizhub C759/C659 GC7-X8 and earlier, bizhub C658/C558/C458 GC7-X8 and earlier, bizhub 958/808/758 GC7-X8 and earlier, bizhub 658e/558e/458e GC7-X8 and earlier, bizhub C287/C227 GC7-X8 and earlier, bizhub 287/227 GC7-X8 and earlier, bizhub 368e/308e GC7-X8 and earlier, bizhub C368/C308/C258 GC9-X4 and earlier, bizhub 558/458/368/308 GC9-X4 and earlier, bizhub C754e/C654e GDQ-M0 and earlier, bizhub 754e/654e GDQ-M0 and earlier, bizhub C554e/C454e GDQ-M1 and earlier, bizhub C364e/C284e/C224e GDQ-M1 and earlier, bizhub 554e/454e/364e/284e/224e GDQ-M1 and earlier, bizhub C754/C654 C554/C454 GR1-M0 and earlier, bizhub C364/C284/C224 GR1-M0 and earlier, bizhub 754/654 GR1-M0 and earlier, bizhub C4050i/C3350i/C4000i/C3300i G00-B6 and earlier, bizhub C3320i G00-B6 and earlier, bizhub 4750i/4050i G00-22 and earlier, bizhub 4700i G00-22 and earlier, bizhub C3851FS/C3851/C3351 GC9-X4 and earlier, bizhub 4752/4052 GC9-X4 and earlier, bizhub C3850/C3350/3850FS, bizhub 4750/4050, bizhub C3110, bizhub C3100P) allows a physical attacker to obtain unsent scanned image data when scanned data transmission is stopped due to the network error by ejecting a HDD before the scan job times out.

References

NVD — CVE-2021-20870 NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-20870
jvn.jp/en/vu/jvnvu95192472... WEB
https://jvn.jp/en/vu/JVNVU95192472/index.html
jvn.jp/vu/jvnvu95192472/in... WEB
https://jvn.jp/vu/JVNVU95192472/index.html
www.konicaminolta.com/global/newsroom/top... WEB
https://www.konicaminolta.com/global/newsroom/topics/2021/1224-01-01.html
www.konicaminolta.jp/business/support/im... WEB
https://www.konicaminolta.jp/business/support/important/211224_01_01.html

Frequently Asked Questions

What is CVE-2021-20870?
CVE-2021-20870 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-755: Improper Handling of Exceptional Conditions.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2021-20870?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2021-20870?
CVE-2021-20870 is classified under CWE-755: Improper Handling of Exceptional Conditions (The product does not handle or incorrectly handles an exceptional condition.).
How can I check Maven dependencies for CVE-2021-20870?
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 
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  "id" : "GHSA-6c2h-x2jr-x8w2",
  "modified" : "2022-01-14T00:03:14Z",
  "published" : "2022-01-05T00:01:11Z",
  "aliases" : [ "CVE-2021-20870" ],
  "details" : "Improper handling of exceptional conditions vulnerability in KONICA MINOLTA bizhub series (bizhub C750i G00-35 and earlier, bizhub C650i/C550i/C450i G00-B6 and earlier, bizhub C360i/C300i/C250i G00-B6 and earlier, bizhub 750i/650i/550i/450i G00-37 and earlier, bizhub 360i/300i G00-33 and earlier, bizhub C287i/C257i/C227i G00-19 and earlier, bizhub 306i/266i/246i/226i G00-B6 and earlier, bizhub C759/C659 GC7-X8 and earlier, bizhub C658/C558/C458 GC7-X8 and earlier, bizhub 958/808/758 GC7-X8 and earlier, bizhub 658e/558e/458e GC7-X8 and earlier, bizhub C287/C227 GC7-X8 and earlier, bizhub 287/227 GC7-X8 and earlier, bizhub 368e/308e GC7-X8 and earlier, bizhub C368/C308/C258 GC9-X4 and earlier, bizhub 558/458/368/308 GC9-X4 and earlier, bizhub C754e/C654e GDQ-M0 and earlier, bizhub 754e/654e GDQ-M0 and earlier, bizhub C554e/C454e GDQ-M1 and earlier, bizhub C364e/C284e/C224e GDQ-M1 and earlier, bizhub 554e/454e/364e/284e/224e GDQ-M1 and earlier, bizhub C754/C654 C554/C454 GR1-M0 and earlier, bizhub C364/C284/C224 GR1-M0 and earlier, bizhub 754/654 GR1-M0 and earlier, bizhub C4050i/C3350i/C4000i/C3300i G00-B6 and earlier, bizhub C3320i G00-B6 and earlier, bizhub 4750i/4050i G00-22 and earlier, bizhub 4700i G00-22 and earlier, bizhub C3851FS/C3851/C3351 GC9-X4 and earlier, bizhub 4752/4052 GC9-X4 and earlier, bizhub C3850/C3350/3850FS, bizhub 4750/4050, bizhub C3110, bizhub C3100P) allows a physical attacker to obtain unsent scanned image data when scanned data transmission is stopped due to the network error by ejecting a HDD before the scan job times out.",
  "severity" : [ ],
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  "database_specific" : {
    "cwe_ids" : [ "CWE-755" ],
    "severity" : "MODERATE",
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    "github_reviewed_at" : null,
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