CVE catalog
CVE-2023-0809
mosquitto: CVE-2023-0809
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.71% · Oct 25, 2026
A memory leak vulnerability was found in Eclipse Mosquitto. This issue is triggered by malicious initial packets or certain client actions and may allow a remote attacker to the deplete system resources causing memory exhaustion, leading to a disruption in services and a denial of service condition. mosquitto: memory leak leads to unresponsive broker The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | mosquitto | sid | 2.1.2-3 | fixed |
| Debian | mosquitto | forky | 2.1.2-3 | fixed |
| Debian | mosquitto | trixie | 2.0.21-1 | fixed |
| Debian | mosquitto | bookworm | 2.0.11-1.2+deb12u2 | fixed |
| Debian | mosquitto | bookworm-security | 2.0.11-1.2+deb12u1 | fixed |
| Alpine | mosquitto | 3.18 | 2.0.16-r0 | fixed |
| Alpine | mosquitto | 3.19 | 2.0.16-r0 | fixed |
| Alpine | mosquitto | 3.20 | 2.0.16-r0 | fixed |
| Alpine | mosquitto | 3.21 | 2.0.16-r0 | fixed |
| Alpine | mosquitto | 3.22 | 2.0.16-r0 | fixed |
| Alpine | mosquitto | 3.23 | 2.0.16-r0 | fixed |
| Alpine | mosquitto | 3.24 | 2.0.16-r0 | fixed |
| Ubuntu | mosquitto | pro | 1.6.6-1 | vulnerable |
| Ubuntu | mosquitto | pro | 1.6.7-1 | vulnerable |
| Ubuntu | mosquitto | pro | 1.6.8-1 | vulnerable |
| Ubuntu | mosquitto | pro | 1.6.8-2 | vulnerable |
| Ubuntu | mosquitto | pro | 1.6.9-1~build1 | vulnerable |
| Ubuntu | mosquitto | pro | 1.6.9-1 | vulnerable |
| Ubuntu | mosquitto | pro | 1.6.9-1ubuntu0.1~esm1 | fixed |
| Ubuntu | mosquitto | 22.04 | 2.0.11-1 | vulnerable |
| Ubuntu | mosquitto | 22.04 | 2.0.11-1build1 | vulnerable |
| Ubuntu | mosquitto | 22.04 | 2.0.11-1ubuntu1 | vulnerable |
| Ubuntu | mosquitto | 22.04 | 2.0.11-1ubuntu1.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | mosquitto | source | sid | 2.0.17-1 | not yet assigned | Not reported | Not reported |
| Debian | mosquitto | source | forky | 2.0.17-1 | not yet assigned | Not reported | Not reported |
| Debian | mosquitto | source | trixie | 2.0.17-1 | not yet assigned | Not reported | Not reported |
| Debian | mosquitto | source | bookworm | 2.0.11-1.2+deb12u1 | not yet assigned | Not reported | Not reported |
| Alpine | mosquitto | apk | 3.18 | 2.0.16-r0 | Not reported | ALPINE-CVE-2023-0809 | Not reported |
| Alpine | mosquitto | apk | 3.19 | 2.0.16-r0 | Not reported | ALPINE-CVE-2023-0809 | Not reported |
| Alpine | mosquitto | apk | 3.20 | 2.0.16-r0 | Not reported | ALPINE-CVE-2023-0809 | Not reported |
| Alpine | mosquitto | apk | 3.21 | 2.0.16-r0 | Not reported | ALPINE-CVE-2023-0809 | Not reported |
| Alpine | mosquitto | apk | 3.22 | 2.0.16-r0 | Not reported | ALPINE-CVE-2023-0809 | Not reported |
| Alpine | mosquitto | apk | 3.23 | 2.0.16-r0 | Not reported | ALPINE-CVE-2023-0809 | Not reported |
| Alpine | mosquitto | apk | 3.24 | 2.0.16-r0 | Not reported | ALPINE-CVE-2023-0809 | Not reported |
| Ubuntu | mosquitto | deb | pro | 1.6.9-1ubuntu0.1~esm1 | Not reported | UBUNTU-CVE-2023-0809 | Not reported |
| Ubuntu | mosquitto | deb | 22.04 | 2.0.11-1ubuntu1.1 | Not reported | UBUNTU-CVE-2023-0809 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libmosquitto1]Fixed
Source package: [mosquitto]
Details (6)
2.0.11-1.2+deb12u2· amd64 · bookwormFixed · Fixed:
2.0.11-1.2+deb12u1dsa · mosquitto · debian · bookworm; dsa · mosquitto · debian · 12
2.0.11-1.2+deb12u2· arm64 · bookwormFixed · Fixed:
2.0.11-1.2+deb12u1dsa · mosquitto · debian · bookworm; dsa · mosquitto · debian · 12
2.0.21-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
2.0.11-1.2+deb12u1dsa · mosquitto · debian · bookworm; dsa · mosquitto · debian · 12
2.0.21-1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
2.0.11-1.2+deb12u1dsa · mosquitto · debian · bookworm; dsa · mosquitto · debian · 12
2.0.11-1.2+deb12u1· amd64 · bookworm-securityFixed · Fixed:
2.0.11-1.2+deb12u1dsa · mosquitto · debian · bookworm; dsa · mosquitto · debian · 12
2.0.11-1.2+deb12u1· arm64 · bookworm-securityFixed · Fixed:
2.0.11-1.2+deb12u1dsa · mosquitto · debian · bookworm; dsa · mosquitto · debian · 12
- [libmosquitto-dev]Fixed
Source package: [mosquitto]
Details (6)
2.0.11-1.2+deb12u2· amd64 · bookwormFixed · Fixed:
2.0.11-1.2+deb12u1dsa · mosquitto · debian · bookworm; dsa · mosquitto · debian · 12
2.0.11-1.2+deb12u2· arm64 · bookwormFixed · Fixed:
2.0.11-1.2+deb12u1dsa · mosquitto · debian · bookworm; dsa · mosquitto · debian · 12
2.0.21-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
2.0.11-1.2+deb12u1dsa · mosquitto · debian · bookworm; dsa · mosquitto · debian · 12
2.0.21-1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
2.0.11-1.2+deb12u1dsa · mosquitto · debian · bookworm; dsa · mosquitto · debian · 12
2.0.11-1.2+deb12u1· amd64 · bookworm-securityFixed · Fixed:
2.0.11-1.2+deb12u1dsa · mosquitto · debian · bookworm; dsa · mosquitto · debian · 12
2.0.11-1.2+deb12u1· arm64 · bookworm-securityFixed · Fixed:
2.0.11-1.2+deb12u1dsa · mosquitto · debian · bookworm; dsa · mosquitto · debian · 12
- [libmosquittopp1]Fixed
Source package: [mosquitto]
Details (6)
2.0.11-1.2+deb12u2· amd64 · bookwormFixed · Fixed:
2.0.11-1.2+deb12u1dsa · mosquitto · debian · bookworm; dsa · mosquitto · debian · 12
2.0.11-1.2+deb12u2· arm64 · bookwormFixed · Fixed:
2.0.11-1.2+deb12u1dsa · mosquitto · debian · bookworm; dsa · mosquitto · debian · 12
2.0.21-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
2.0.11-1.2+deb12u1dsa · mosquitto · debian · bookworm; dsa · mosquitto · debian · 12
2.0.21-1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
2.0.11-1.2+deb12u1dsa · mosquitto · debian · bookworm; dsa · mosquitto · debian · 12
2.0.11-1.2+deb12u1· amd64 · bookworm-securityFixed · Fixed:
2.0.11-1.2+deb12u1dsa · mosquitto · debian · bookworm; dsa · mosquitto · debian · 12
2.0.11-1.2+deb12u1· arm64 · bookworm-securityFixed · Fixed:
2.0.11-1.2+deb12u1dsa · mosquitto · debian · bookworm; dsa · mosquitto · debian · 12
- [libmosquittopp-dev]Fixed
Source package: [mosquitto]
Details (6)
2.0.11-1.2+deb12u2· amd64 · bookwormFixed · Fixed:
2.0.11-1.2+deb12u1dsa · mosquitto · debian · bookworm; dsa · mosquitto · debian · 12
2.0.11-1.2+deb12u2· arm64 · bookwormFixed · Fixed:
2.0.11-1.2+deb12u1dsa · mosquitto · debian · bookworm; dsa · mosquitto · debian · 12
2.0.21-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
2.0.11-1.2+deb12u1dsa · mosquitto · debian · bookworm; dsa · mosquitto · debian · 12
2.0.21-1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
2.0.11-1.2+deb12u1dsa · mosquitto · debian · bookworm; dsa · mosquitto · debian · 12
2.0.11-1.2+deb12u1· amd64 · bookworm-securityFixed · Fixed:
2.0.11-1.2+deb12u1dsa · mosquitto · debian · bookworm; dsa · mosquitto · debian · 12
2.0.11-1.2+deb12u1· arm64 · bookworm-securityFixed · Fixed:
2.0.11-1.2+deb12u1dsa · mosquitto · debian · bookworm; dsa · mosquitto · debian · 12
- [mosquitto]Fixed
Details (6)
2.0.11-1.2+deb12u2· amd64 · bookwormFixed · Fixed:
2.0.11-1.2+deb12u1dsa · mosquitto · debian · bookworm; dsa · mosquitto · debian · 12
2.0.11-1.2+deb12u2· arm64 · bookwormFixed · Fixed:
2.0.11-1.2+deb12u1dsa · mosquitto · debian · bookworm; dsa · mosquitto · debian · 12
2.0.21-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
2.0.11-1.2+deb12u1dsa · mosquitto · debian · bookworm; dsa · mosquitto · debian · 12
2.0.21-1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
2.0.11-1.2+deb12u1dsa · mosquitto · debian · bookworm; dsa · mosquitto · debian · 12
2.0.11-1.2+deb12u1· amd64 · bookworm-securityFixed · Fixed:
2.0.11-1.2+deb12u1dsa · mosquitto · debian · bookworm; dsa · mosquitto · debian · 12
2.0.11-1.2+deb12u1· arm64 · bookworm-securityFixed · Fixed:
2.0.11-1.2+deb12u1dsa · mosquitto · debian · bookworm; dsa · mosquitto · debian · 12
- [mosquitto-clients]Fixed
Source package: [mosquitto]
Details (6)
2.0.11-1.2+deb12u2· amd64 · bookwormFixed · Fixed:
2.0.11-1.2+deb12u1dsa · mosquitto · debian · bookworm; dsa · mosquitto · debian · 12
2.0.11-1.2+deb12u2· arm64 · bookwormFixed · Fixed:
2.0.11-1.2+deb12u1dsa · mosquitto · debian · bookworm; dsa · mosquitto · debian · 12
2.0.21-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
2.0.11-1.2+deb12u1dsa · mosquitto · debian · bookworm; dsa · mosquitto · debian · 12
2.0.21-1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
2.0.11-1.2+deb12u1dsa · mosquitto · debian · bookworm; dsa · mosquitto · debian · 12
2.0.11-1.2+deb12u1· amd64 · bookworm-securityFixed · Fixed:
2.0.11-1.2+deb12u1dsa · mosquitto · debian · bookworm; dsa · mosquitto · debian · 12
2.0.11-1.2+deb12u1· arm64 · bookworm-securityFixed · Fixed:
2.0.11-1.2+deb12u1dsa · mosquitto · debian · bookworm; dsa · mosquitto · debian · 12
- [mosquitto-dev]Fixed
Source package: [mosquitto]
Details (6)
2.0.11-1.2+deb12u2· all · bookwormFixed · Fixed:
2.0.11-1.2+deb12u1dsa · mosquitto · debian · bookworm; dsa · mosquitto · debian · 12
2.0.11-1.2+deb12u2· all · bookwormFixed · Fixed:
2.0.11-1.2+deb12u1dsa · mosquitto · debian · bookworm; dsa · mosquitto · debian · 12
2.0.21-1~bpo12+1· all · bookworm-backportsFixed · Fixed:
2.0.11-1.2+deb12u1dsa · mosquitto · debian · bookworm; dsa · mosquitto · debian · 12
2.0.21-1~bpo12+1· all · bookworm-backportsFixed · Fixed:
2.0.11-1.2+deb12u1dsa · mosquitto · debian · bookworm; dsa · mosquitto · debian · 12
2.0.11-1.2+deb12u1· all · bookworm-securityFixed · Fixed:
2.0.11-1.2+deb12u1dsa · mosquitto · debian · bookworm; dsa · mosquitto · debian · 12
2.0.11-1.2+deb12u1· all · bookworm-securityFixed · Fixed:
2.0.11-1.2+deb12u1dsa · mosquitto · debian · bookworm; dsa · mosquitto · debian · 12
[Debian 13 (Trixie)]
- [libmosquitto1]Fixed
Source package: [mosquitto]
Details (2)
2.0.21-1· amd64 · trixieFixed · Fixed:
2.0.17-1dsa · mosquitto · debian · 13
2.0.21-1· arm64 · trixieFixed · Fixed:
2.0.17-1dsa · mosquitto · debian · 13
- [libmosquitto-dev]Fixed
Source package: [mosquitto]
Details (2)
2.0.21-1· amd64 · trixieFixed · Fixed:
2.0.17-1dsa · mosquitto · debian · 13
2.0.21-1· arm64 · trixieFixed · Fixed:
2.0.17-1dsa · mosquitto · debian · 13
- [libmosquittopp1]Fixed
Source package: [mosquitto]
Details (2)
2.0.21-1· amd64 · trixieFixed · Fixed:
2.0.17-1dsa · mosquitto · debian · 13
2.0.21-1· arm64 · trixieFixed · Fixed:
2.0.17-1dsa · mosquitto · debian · 13
- [libmosquittopp-dev]Fixed
Source package: [mosquitto]
Details (2)
2.0.21-1· amd64 · trixieFixed · Fixed:
2.0.17-1dsa · mosquitto · debian · 13
2.0.21-1· arm64 · trixieFixed · Fixed:
2.0.17-1dsa · mosquitto · debian · 13
- [mosquitto]Fixed
Details (2)
2.0.21-1· amd64 · trixieFixed · Fixed:
2.0.17-1dsa · mosquitto · debian · 13
2.0.21-1· arm64 · trixieFixed · Fixed:
2.0.17-1dsa · mosquitto · debian · 13
- [mosquitto-clients]Fixed
Source package: [mosquitto]
Details (2)
2.0.21-1· amd64 · trixieFixed · Fixed:
2.0.17-1dsa · mosquitto · debian · 13
2.0.21-1· arm64 · trixieFixed · Fixed:
2.0.17-1dsa · mosquitto · debian · 13
- [mosquitto-dev]Fixed
Source package: [mosquitto]
Details (2)
2.0.21-1· all · trixieFixed · Fixed:
2.0.17-1dsa · mosquitto · debian · 13
2.0.21-1· all · trixieFixed · Fixed:
2.0.17-1dsa · mosquitto · debian · 13
Observed:
References
- [https://access.redhat.com/errata/RHSA-2024:1061]
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2024_13546-1.json]
- [https://osv.dev/vulnerability/ALPINE-CVE-2023-0809]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2023-0809]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2023-0809]
- [https://security-tracker.debian.org/tracker/CVE-2023-0809]
- [https://wid.cert-bund.de/.well-known/csaf/white/2023/wid-sec-w-2023-2724.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]