Linux · 
Ubuntu · Package update · October 2, 2023
Ubuntu · Package update · October 2, 2023mosquitto 1.6.9-1ubuntu0.1~esm1: mosquitto 1.6.9-1ubuntu0.1~esm1 for Ubuntu 20.04.3 LTS (focal)
mosquitto 1.6.9-1ubuntu0.1~esm1, released October 2, 2023, fixes 4 CVEs in mosquitto. None of them is reported as exploited. Patch Radar priority: High. The product is no longer supported.
HighUnsupported product
CVEs closed
4
None rated Critical
Exploited
0
None reported
Highest CVSS
7.5
Base score, 0 to 10
Highest EPSS
0.0136
72nd percentile
Priority of the 4 CVEs
Patch now 0
Urgent 0
High 2
Routine 2
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| mosquitto | Ubuntu 20.04.3 LTS (focal) | 1.6.9-1ubuntu0.1~esm1 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| High | CVE-2021-41039 | mosquitto: In versions 1.6 to 2.0.11 of Eclipse Mosquitto, an MQTT v5 client connecting with a large number of user-property pro... | 7.5 | 0.0136 | None reported |
| High | CVE-2023-3592 | mosquitto: In Mosquitto before 2.0.16, a memory leak occurs when clients send v5 CONNECT packets with a will message that contai... | 7.5 | 0.0079 | None reported |
| Routine | CVE-2021-34431 | libmosquitto1: In Eclipse Mosquitto version 1.6 to 2.0.10, if an authenticated client that had connected with MQTT v5 sent a crafted... | n/a | 0.0111 | None reported |
| Routine | CVE-2023-0809 | libmosquitto1: In Mosquitto before 2.0.16, excessive memory is allocated based on malicious initial packets that are not CONNECT pac... | 5.3 | 0.0071 | None reported |
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