National Vulnerability Database

National Vulnerability Database

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    Vulnerabilities Detail

CVE-2017-7653 Detail

Current Description

The Eclipse Mosquitto broker up to version 1.4.15 does not reject strings that are not valid UTF-8. A malicious client could cause other clients that do reject invalid UTF-8 strings to disconnect themselves from the broker by sending a topic string which is not valid UTF-8, and so cause a denial of service for the clients.

Source:  MITRE
Description Last Modified:  06/05/2018
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 5.3 MEDIUM
Vector: AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H (V3 legend)
Impact Score: 3.6
Exploitability Score: 1.6

Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 3.5 LOW
Vector: (AV:N/AC:M/Au:S/C:N/I:N/A:P) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 6.8

Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (AU): Single
Confidentiality (C): None
Integrity (I): None
Availability (A): Partial
Additional Information:
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://docs.oasis-open.org/mqtt/disallowed-chars/v1.0/disallowed-chars-v1.0.pdf Third Party Advisory
https://bugs.eclipse.org/bugs/show_bug.cgi?id=532113 Issue Tracking Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/09/msg00036.html Mailing List Third Party Advisory
https://www.debian.org/security/2018/dsa-4325 Third Party Advisory

Technical Details

Vulnerability Type (View All)

Known Affected Software Configurations Switch to CPE 2.3

Configuration 1 ( hide )
 cpe:/a:eclipse:mosquitto
     Show Matching CPE(s)
Up to (including)
1.4.15

Configuration 2 ( hide )
 cpe:/o:debian:debian_linux:8.0
     Show Matching CPE(s)
 cpe:/o:debian:debian_linux:9.0
     Show Matching CPE(s)


Change History

5 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-7653
NVD Published Date:
06/05/2018
NVD Last Modified:
03/29/2019