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Debian: CVE-2018-12551: mosquitto -- security update

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Debian: CVE-2018-12551: mosquitto -- security update

Severity
7
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
Published
02/10/2019
Created
03/19/2019
Added
02/11/2019
Modified
02/18/2020

Description

When Eclipse Mosquitto version 1.0 to 1.5.5 (inclusive) is configured to use a password file for authentication, any malformed data in the password file will be treated as valid. This typically means that the malformed data becomes a username and no password. If this occurs, clients can circumvent authentication and get access to the broker by using the malformed username. In particular, a blank line will be treated as a valid empty username. Other security measures are unaffected. Users who have only used the mosquitto_passwd utility to create and modify their password files are unaffected by this vulnerability.

Solution(s)

  • debian-upgrade-mosquitto

References

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