CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
97.2%
Package : mosquitto
Version : 1.3.4-2+deb8u4
CVE ID : CVE-2017-7655 CVE-2018-12550 CVE-2018-12551
CVE-2019-11779
Several issues have been found in mosquitto, a MQTT version 3.1/3.1.1
compatible message broker.
CVE-2017-7655
A Null dereference vulnerability in the Mosquitto library could
lead to crashes for those applications using the library.
CVE-2018-12550
An ACL file with no statements was treated as having a default
allow policy. The new behaviour of an empty ACL file is a default
policy of access denied.
(this is in compliance with all newer releases)
CVE-2018-12551
Malformed authentication data in the password file could allow
clients to circumvent authentication and get access to the broker.
CVE-2019-11779
Fix for processing a crafted SUBSCRIBE packet containing a topic
that consists of approximately 65400 or more '/' characters.
(setting TOPIC_HIERARCHY_LIMIT to 200)
For Debian 8 "Jessie", these problems have been fixed in version
1.3.4-2+deb8u4.
We recommend that you upgrade your mosquitto packages.
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 8 | all | mosquitto | < 1.3.4-2+deb8u4 | mosquitto_1.3.4-2+deb8u4_all.deb |
Debian | 9 | mips | mosquitto-clients | < 1.4.10-3+deb9u3 | mosquitto-clients_1.4.10-3+deb9u3_mips.deb |
Debian | 8 | armel | mosquitto-dbg | < 1.3.4-2+deb8u4 | mosquitto-dbg_1.3.4-2+deb8u4_armel.deb |
Debian | 9 | i386 | libmosquittopp1-dbg | < 1.4.10-3+deb9u3 | libmosquittopp1-dbg_1.4.10-3+deb9u3_i386.deb |
Debian | 8 | i386 | mosquitto | < 1.3.4-2+deb8u4 | mosquitto_1.3.4-2+deb8u4_i386.deb |
Debian | 9 | i386 | mosquitto-dbg | < 1.4.10-3+deb9u3 | mosquitto-dbg_1.4.10-3+deb9u3_i386.deb |
Debian | 9 | mips | mosquitto | < 1.4.10-3+deb9u3 | mosquitto_1.4.10-3+deb9u3_mips.deb |
Debian | 8 | i386 | mosquitto-dbg | < 1.3.4-2+deb8u4 | mosquitto-dbg_1.3.4-2+deb8u4_i386.deb |
Debian | 9 | armhf | libmosquitto1-dbg | < 1.4.10-3+deb9u3 | libmosquitto1-dbg_1.4.10-3+deb9u3_armhf.deb |
Debian | 9 | armel | libmosquitto-dev | < 1.4.10-3+deb9u3 | libmosquitto-dev_1.4.10-3+deb9u3_armel.deb |
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
97.2%