[SECURITY] [DSA 4570-1] mosquitto security update

From: Salvatore Bonaccorso <carnil@debian.org>
To: bugtraq@securityfocus.com
Cc:
Subject: [SECURITY] [DSA 4570-1] mosquitto security update
Date:


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Debian Security Advisory DSA-4570-1                   security@debian.org
https://www.debian.org/security/                     Salvatore Bonaccorso
November 17, 2019                     https://www.debian.org/security/faq
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Package        : mosquitto
CVE ID         : CVE-2019-11779
Debian Bug     : 940654

A vulnerability was discovered in mosquitto, a MQTT version 3.1/3.1.1
compatible message broker, allowing a malicious MQTT client to cause a
denial of service (stack overflow and daemon crash), by sending a
specially crafted SUBSCRIBE packet containing a topic with a extremely
deep hierarchy.

For the stable distribution (buster), this problem has been fixed in
version 1.5.7-1+deb10u1.

We recommend that you upgrade your mosquitto packages.

For the detailed security status of mosquitto please refer to its
security tracker page at:
https://security-tracker.debian.org/tracker/mosquitto

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org
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