DescriptionIn Eclipse Mosquitto versions 2.07 and earlier, the server will crash if the client tries to send a PUBLISH packet with topic length = 0.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severitymedium

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
mosquitto (PTS)stretch1.4.10-3+deb9u4fixed
stretch (security)1.4.10-3+deb9u5fixed
buster, buster (security)1.5.7-1+deb10u1fixed
bookworm, bullseye, sid2.0.11-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
mosquittosourcestretch(not affected)
mosquittosourcebuster(not affected)


[buster] - mosquitto <not-affected> (Vulnerable code is not accessible in version 1.x)
[stretch] - mosquitto <not-affected> (Vulnerable code is not accessible in version 1.x)

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