| Name | CVE-2019-11778 |
| Description | If an MQTT v5 client connects to Eclipse Mosquitto versions 1.6.0 to 1.6.4 inclusive, sets a last will and testament, sets a will delay interval, sets a session expiry interval, and the will delay interval is set longer than the session expiry interval, then a use after free error occurs, which has the potential to cause a crash in some situations. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| mosquitto (PTS) | jessie, jessie (lts) | 1.3.4-2+deb8u4 | fixed |
| stretch (security), stretch (lts), stretch | 1.4.10-3+deb9u5 | fixed | |
| buster (security), buster, buster (lts) | 1.5.7-1+deb10u1 | fixed | |
| bullseye (security), bullseye | 2.0.11-1+deb11u1 | fixed | |
| bookworm (security), bookworm | 2.0.11-1.2+deb12u1 | fixed | |
| sid, trixie | 2.0.20-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| mosquitto | source | jessie | (not affected) | |||
| mosquitto | source | stretch | (not affected) | |||
| mosquitto | source | buster | (not affected) | |||
| mosquitto | source | (unstable) | 1.6.6-1 |
[buster] - mosquitto <not-affected> (Session expiry interval support introduced in 1.6)
[stretch] - mosquitto <not-affected> (Session expiry interval support introduced in 1.6)
[jessie] - mosquitto <not-affected> (Session expiry interval support introduced in 1.6)
https://bugs.eclipse.org/bugs/show_bug.cgi?id=551162
https://github.com/eclipse/mosquitto/issues/1401
https://github.com/eclipse/mosquitto/commit/8407c6d146d1e8299127737d9735afc782e04ea8
https://github.com/eclipse/mosquitto/commit/6f3e7b9ceb43e2626a32340c26b69ac8ae5e9c8c
https://mosquitto.org/blog/2019/09/version-1-6-6-released/