CVE-2017-1000230 - Vulnerability Details - OpenCVE

Description

The Snap7 Server version 1.4.1 can be crashed when the ItemCount field of the ReadVar or WriteVar functions of the S7 protocol implementation in Snap7 are provided with unexpected input, thus resulting in denial of service attack.

Published: 2017-11-17

Score: 7.5 High

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

cpe:2.3:a:snap7_project:snap7_server:1.4.1:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2017-1498	The Snap7 Server version 1.4.1 can be crashed when the ItemCount field of the ReadVar or WriteVar functions of the S7 protocol implementation in Snap7 are provided with unexpected input, thus resulting in denial of service attack.

No CVSS v4.0

No CVSS v3.1

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact None

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.00334.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://sourceforge.net/p/snap7/discussion/bugfix/thread/2d2d085c/

History

No history.

Subscriptions

Snap7 Project Snap7 Server

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2017-11-17T21:00:00.000Z

Updated: 2024-09-16T22:52:08.145Z

Reserved: 2017-11-17T00:00:00.000Z

Link: CVE-2017-1000230

Vulnrichment

No data.

NVD

Status : Modified

Published: 2017-11-17T21:29:00.357

Modified: 2026-05-13T00:24:29.033

Link: CVE-2017-1000230

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-20

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