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DebianDEBIAN:DLA-1972-1:5A176

HistoryOct 26, 2019 - 9:33 p.m.

[SECURITY] [DLA 1972-1] mosquitto security update

2019-10-2621:33:17

lists.debian.org

8.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

6.8 Medium

CVSS2

Access Vector

NETWORK

Access 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

0.002 Low

EPSS

Percentile

64.3%

JSON

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 &#x27;/&#x27; 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

OSVersionArchitecturePackageVersionFilename
Debian9mipslibmosquittopp-dev< 1.4.10-3+deb9u3libmosquittopp-dev_1.4.10-3+deb9u3_mips.deb
Debian9armhfmosquitto-clients< 1.4.10-3+deb9u3mosquitto-clients_1.4.10-3+deb9u3_armhf.deb
Debian9amd64libmosquitto1< 1.4.10-3+deb9u3libmosquitto1_1.4.10-3+deb9u3_amd64.deb
Debian8armhfmosquitto< 1.3.4-2+deb8u4mosquitto_1.3.4-2+deb8u4_armhf.deb
Debian8armhflibmosquitto1< 1.3.4-2+deb8u4libmosquitto1_1.3.4-2+deb8u4_armhf.deb
Debian9mipslibmosquitto1< 1.4.10-3+deb9u3libmosquitto1_1.4.10-3+deb9u3_mips.deb
Debian9armelmosquitto-dbg< 1.4.10-3+deb9u3mosquitto-dbg_1.4.10-3+deb9u3_armel.deb
Debian9mipsellibmosquittopp1< 1.4.10-3+deb9u3libmosquittopp1_1.4.10-3+deb9u3_mipsel.deb
Debian9mips64ellibmosquitto1-dbg< 1.4.10-3+deb9u3libmosquitto1-dbg_1.4.10-3+deb9u3_mips64el.deb
Debian9mips64elmosquitto-clients< 1.4.10-3+deb9u3mosquitto-clients_1.4.10-3+deb9u3_mips64el.deb

OS	Version	Architecture	Package	Version	Filename
Debian	9	mips	libmosquittopp-dev	< 1.4.10-3+deb9u3	libmosquittopp-dev_1.4.10-3+deb9u3_mips.deb
Debian	9	armhf	mosquitto-clients	< 1.4.10-3+deb9u3	mosquitto-clients_1.4.10-3+deb9u3_armhf.deb
Debian	9	amd64	libmosquitto1	< 1.4.10-3+deb9u3	libmosquitto1_1.4.10-3+deb9u3_amd64.deb
Debian	8	armhf	mosquitto	< 1.3.4-2+deb8u4	mosquitto_1.3.4-2+deb8u4_armhf.deb
Debian	8	armhf	libmosquitto1	< 1.3.4-2+deb8u4	libmosquitto1_1.3.4-2+deb8u4_armhf.deb
Debian	9	mips	libmosquitto1	< 1.4.10-3+deb9u3	libmosquitto1_1.4.10-3+deb9u3_mips.deb
Debian	9	armel	mosquitto-dbg	< 1.4.10-3+deb9u3	mosquitto-dbg_1.4.10-3+deb9u3_armel.deb
Debian	9	mipsel	libmosquittopp1	< 1.4.10-3+deb9u3	libmosquittopp1_1.4.10-3+deb9u3_mipsel.deb
Debian	9	mips64el	libmosquitto1-dbg	< 1.4.10-3+deb9u3	libmosquitto1-dbg_1.4.10-3+deb9u3_mips64el.deb
Debian	9	mips64el	mosquitto-clients	< 1.4.10-3+deb9u3	mosquitto-clients_1.4.10-3+deb9u3_mips64el.deb