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Resource management errors vulnerability in a robot...

High severity Unreviewed Published May 24, 2022 to the GitHub Advisory Database • Updated Jan 27, 2023

Package

No package listed— Suggest a package

Affected versions

Unknown

Patched versions

Unknown

Description

Resource management errors vulnerability in a robot controller of MELFA FR Series(controller "CR800-VD" of RV-FR**-D-* all versions, controller "CR800-HD" of RH-FRH*-D-* all versions, controller "CR800-HRD" of RH-FRHR*-D-* all versions, controller "CR800-VR with R16RTCPU" of RV-FR**-R-* all versions, controller "CR800-HR with R16RTCPU" of RH-FRH*-R-* all versions, controller "CR800-HRR with R16RTCPU" of RH-FRHR*-R-* all versions, controller "CR800-VQ with Q172DSRCPU" of RV-FR**-Q-* all versions, controller "CR800-HQ with Q172DSRCPU" of RH-FRH*-Q-* all versions, controller "CR800-HRQ with Q172DSRCPU" of RH-FRHR*-Q-* all versions) and a robot controller of MELFA CR Series(controller "CR800-CVD" of RV-8CRL-D-* all versions, controller "CR800-CHD" of RH-CRH*-D-* all versions) as well as a cooperative robot ASSISTA(controller "CR800-05VD" of RV-5AS-D-* all versions) allows a remote unauthenticated attacker to cause a DoS of the execution of the robot program and the Ethernet communication by sending a large amount of packets in burst over a short period of time. As a result of DoS, an error may occur. A reset is required to recover it if the error occurs.

References

Published by the National Vulnerability Database Jan 29, 2021
Published to the GitHub Advisory Database May 24, 2022
Last updated Jan 27, 2023

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS score

0.244%
(65th percentile)

Weaknesses

CVE ID

CVE-2021-20586

GHSA ID

GHSA-c9mw-29g5-hf3h

Source code

No known source code

Dependabot alerts are not supported on this advisory because it does not have a package from a supported ecosystem with an affected and fixed version.

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