CVE & CISA-KEV Catalog

CVE-2017-7653

MEDIUMEPSS 70th pctl
5.3
CVSS v3
NVD

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.

CWE-20Improper Input Validation

How to fix

Remediation Available
mosquittoDebian
Fixed in:1.5.4-1CVE-2017-7653
Fixed in:1.5.4-1CVE-2017-7653
Fixed in:1.5.4-1CVE-2017-7653
Fixed in:1.5.4-1CVE-2017-7653
libmosquitto1Ubuntu
Fixed in:1.4.8-1ubuntu0.16.04.7USN-4023-1
Fixed in:1.4.15-2ubuntu0.18.04.3USN-4023-1
libmosquittopp1Ubuntu
Fixed in:1.4.8-1ubuntu0.16.04.7USN-4023-1
Fixed in:1.4.15-2ubuntu0.18.04.3USN-4023-1
mosquittoUbuntu
Fixed in:1.4.8-1ubuntu0.16.04.7USN-4023-1
Fixed in:1.4.15-2ubuntu0.18.04.3USN-4023-1
mosquitto-clientsUbuntu
Fixed in:1.4.8-1ubuntu0.16.04.7USN-4023-1
Fixed in:1.4.15-2ubuntu0.18.04.3USN-4023-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityHigh
Privileges RequiredLow
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityNone
AvailabilityHigh

CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

1.45%probability of exploitation in 30 days
70thpercentile

Elevated risk: more likely to be exploited than 70% of all known CVEs.

References

Other references1

Related Vulnerabilities

Other CWE-20 (Improper Input Validation) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2024-3400Critical10.0100%KEV + Ransom-
CVE-2021-45105Medium5.9100%-Fix
CVE-2021-44228Critical10.0100%KEV + RansomFix
CVE-2021-21985Critical9.8100%KEV + RansomFix
CVE-2018-7600Critical9.8100%KEV + RansomFix
CVE-2020-3452High7.5100%KEVFix
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.