CVE catalog
CVE-2019-14834
dnsmasq: CVE-2019-14834
- Severity
- Medium · CVSS 4.3
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 2.65% · Oct 27, 2026
A vulnerability was found in dnsmasq before version 2.81, where the memory leak allows remote attackers to cause a denial of service (memory consumption) via vectors involving DHCP response creation.
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 | dnsmasq | sid | 2.93-3 | fixed |
| Debian | dnsmasq | forky | 2.93-3 | fixed |
| Debian | dnsmasq | trixie | 2.91-1+deb13u2 | fixed |
| Debian | dnsmasq | trixie-security | 2.91-1+deb13u1 | fixed |
| Debian | dnsmasq | bookworm | 2.90-4~deb12u2 | fixed |
| Debian | dnsmasq | bookworm-security | 2.90-4~deb12u2 | fixed |
| Alpine | dnsmasq | 3.10 | 2.80-r4 | fixed |
| Alpine | dnsmasq | 3.11 | 2.80-r5 | fixed |
| Alpine | dnsmasq | 3.12 | 2.80-r5 | fixed |
| Alpine | dnsmasq | 3.13 | 2.80-r5 | fixed |
| Alpine | dnsmasq | 3.14 | 2.80-r5 | fixed |
| Alpine | dnsmasq | 3.15 | 2.80-r5 | fixed |
| Alpine | dnsmasq | 3.16 | 2.80-r5 | fixed |
| Alpine | dnsmasq | 3.17 | 2.80-r5 | fixed |
| Alpine | dnsmasq | 3.18 | 2.80-r5 | fixed |
| Alpine | dnsmasq | 3.19 | 2.80-r5 | fixed |
| Alpine | dnsmasq | 3.20 | 2.80-r5 | fixed |
| Alpine | dnsmasq | 3.21 | 2.80-r5 | fixed |
| Alpine | dnsmasq | 3.22 | 2.80-r5 | fixed |
| Alpine | dnsmasq | 3.23 | 2.80-r5 | fixed |
| Alpine | dnsmasq | 3.24 | 2.80-r5 | fixed |
| Alpine | dnsmasq | 3.8 | 2.79-r4 | fixed |
| Alpine | dnsmasq | 3.9 | 2.80-r4 | fixed |
| Ubuntu | dnsmasq | pro | 2.66-4ubuntu1 | vulnerable |
| Ubuntu | dnsmasq | pro | 2.67-1 | vulnerable |
| Ubuntu | dnsmasq | pro | 2.68-1 | vulnerable |
| Ubuntu | dnsmasq | pro | 2.68-1ubuntu0.1 | vulnerable |
| Ubuntu | dnsmasq | pro | 2.68-1ubuntu0.2 | vulnerable |
| Ubuntu | dnsmasq | pro | 2.68-1ubuntu0.2+esm1 | vulnerable |
| Ubuntu | dnsmasq | pro | 2.68-1ubuntu0.2+esm2 | vulnerable |
| Ubuntu | dnsmasq | pro | 2.68-1ubuntu0.2+esm3 | fixed |
| Ubuntu | dnsmasq | 16.04 | 2.75-1 | vulnerable |
| Ubuntu | dnsmasq | 16.04 | 2.75-1ubuntu0.16.04.1 | vulnerable |
| Ubuntu | dnsmasq | 16.04 | 2.75-1ubuntu0.16.04.2 | vulnerable |
| Ubuntu | dnsmasq | 16.04 | 2.75-1ubuntu0.16.04.3 | vulnerable |
| Ubuntu | dnsmasq | 16.04 | 2.75-1ubuntu0.16.04.4 | vulnerable |
| Ubuntu | dnsmasq | 16.04 | 2.75-1ubuntu0.16.04.5 | vulnerable |
| Ubuntu | dnsmasq | 16.04 | 2.75-1ubuntu0.16.04.7 | fixed |
| Ubuntu | dnsmasq | 18.04 | 2.78-1 | vulnerable |
| Ubuntu | dnsmasq | 18.04 | 2.78-3 | vulnerable |
| Ubuntu | dnsmasq | 18.04 | 2.79-1 | vulnerable |
| Ubuntu | dnsmasq | 18.04 | 2.79-1ubuntu0.2 | fixed |
| Ubuntu | dnsmasq | 20.04 | 2.80-1ubuntu2 | vulnerable |
| Ubuntu | dnsmasq | 20.04 | 2.80-1ubuntu4 | vulnerable |
| Ubuntu | dnsmasq | 20.04 | 2.80-1.1ubuntu1 | vulnerable |
| Ubuntu | dnsmasq | 20.04 | 2.80-1.1ubuntu1.2 | fixed |
| Suse | dnsmasq | linux enterprise server 11 sp4-ltss | 2.78-0.17.15.1 | fixed |
| Suse | dnsmasq | hpe helion openstack 8 | 2.78-18.12.1 | fixed |
| Suse | dnsmasq | openstack cloud 7 | 2.78-18.12.1 | fixed |
| Suse | dnsmasq | openstack cloud 8 | 2.78-18.12.1 | fixed |
| Suse | dnsmasq | openstack cloud 9 | 2.78-18.12.1 | fixed |
| Suse | dnsmasq | openstack cloud crowbar 8 | 2.78-18.12.1 | fixed |
| Suse | dnsmasq | openstack cloud crowbar 9 | 2.78-18.12.1 | fixed |
| Suse | dnsmasq | linux enterprise desktop 12 sp4 | 2.78-18.12.1 | fixed |
| Suse | dnsmasq | linux enterprise server 12 sp4 | 2.78-18.12.1 | fixed |
| Suse | dnsmasq | linux enterprise server for sap applications 12 sp4 | 2.78-18.12.1 | fixed |
| Suse | dnsmasq | linux enterprise server 12 sp5 | 2.78-18.12.1 | fixed |
| Suse | dnsmasq | linux enterprise server for sap applications 12 sp5 | 2.78-18.12.1 | fixed |
| Ubuntu | dnsmasq | pro | 2.66-4ubuntu1 | vulnerable |
| Ubuntu | dnsmasq | pro | 2.67-1 | vulnerable |
| Ubuntu | dnsmasq | pro | 2.68-1 | vulnerable |
| Ubuntu | dnsmasq | pro | 2.68-1ubuntu0.1 | vulnerable |
| Ubuntu | dnsmasq | pro | 2.68-1ubuntu0.2 | vulnerable |
| Ubuntu | dnsmasq | pro | 2.68-1ubuntu0.2+esm1 | vulnerable |
| Ubuntu | dnsmasq | pro | 2.68-1ubuntu0.2+esm2 | vulnerable |
| Ubuntu | dnsmasq | pro | 2.68-1ubuntu0.2+esm3 | fixed |
| Ubuntu | dnsmasq | 16.04 | 2.75-1 | vulnerable |
| Ubuntu | dnsmasq | 16.04 | 2.75-1ubuntu0.16.04.1 | vulnerable |
| Ubuntu | dnsmasq | 16.04 | 2.75-1ubuntu0.16.04.2 | vulnerable |
| Ubuntu | dnsmasq | 16.04 | 2.75-1ubuntu0.16.04.3 | vulnerable |
| Ubuntu | dnsmasq | 16.04 | 2.75-1ubuntu0.16.04.4 | vulnerable |
| Ubuntu | dnsmasq | 16.04 | 2.75-1ubuntu0.16.04.5 | vulnerable |
| Ubuntu | dnsmasq | 16.04 | 2.75-1ubuntu0.16.04.7 | fixed |
| Ubuntu | dnsmasq | 18.04 | 2.78-1 | vulnerable |
| Ubuntu | dnsmasq | 18.04 | 2.78-3 | vulnerable |
| Ubuntu | dnsmasq | 18.04 | 2.79-1 | vulnerable |
| Ubuntu | dnsmasq | 18.04 | 2.79-1ubuntu0.2 | fixed |
| Ubuntu | dnsmasq | 20.04 | 2.80-1ubuntu2 | vulnerable |
| Ubuntu | dnsmasq | 20.04 | 2.80-1ubuntu4 | vulnerable |
| Ubuntu | dnsmasq | 20.04 | 2.80-1.1ubuntu1 | vulnerable |
| Ubuntu | dnsmasq | 20.04 | 2.80-1.1ubuntu1.2 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | dnsmasq | source | sid | 2.81-1 | not yet assigned | Not reported | [948373] |
| Debian | dnsmasq | source | forky | 2.81-1 | not yet assigned | Not reported | [948373] |
| Debian | dnsmasq | source | trixie | 2.81-1 | not yet assigned | Not reported | [948373] |
| Debian | dnsmasq | source | bookworm | 2.81-1 | not yet assigned | Not reported | [948373] |
| Alpine | dnsmasq | apk | 3.10 | 2.80-r4 | Not reported | ALPINE-CVE-2019-14834 | Not reported |
| Alpine | dnsmasq | apk | 3.11 | 2.80-r5 | Not reported | ALPINE-CVE-2019-14834 | Not reported |
| Alpine | dnsmasq | apk | 3.12 | 2.80-r5 | Not reported | ALPINE-CVE-2019-14834 | Not reported |
| Alpine | dnsmasq | apk | 3.13 | 2.80-r5 | Not reported | ALPINE-CVE-2019-14834 | Not reported |
| Alpine | dnsmasq | apk | 3.14 | 2.80-r5 | Not reported | ALPINE-CVE-2019-14834 | Not reported |
| Alpine | dnsmasq | apk | 3.15 | 2.80-r5 | Not reported | ALPINE-CVE-2019-14834 | Not reported |
| Alpine | dnsmasq | apk | 3.16 | 2.80-r5 | Not reported | ALPINE-CVE-2019-14834 | Not reported |
| Alpine | dnsmasq | apk | 3.17 | 2.80-r5 | Not reported | ALPINE-CVE-2019-14834 | Not reported |
| Alpine | dnsmasq | apk | 3.18 | 2.80-r5 | Not reported | ALPINE-CVE-2019-14834 | Not reported |
| Alpine | dnsmasq | apk | 3.19 | 2.80-r5 | Not reported | ALPINE-CVE-2019-14834 | Not reported |
| Alpine | dnsmasq | apk | 3.20 | 2.80-r5 | Not reported | ALPINE-CVE-2019-14834 | Not reported |
| Alpine | dnsmasq | apk | 3.21 | 2.80-r5 | Not reported | ALPINE-CVE-2019-14834 | Not reported |
| Alpine | dnsmasq | apk | 3.22 | 2.80-r5 | Not reported | ALPINE-CVE-2019-14834 | Not reported |
| Alpine | dnsmasq | apk | 3.23 | 2.80-r5 | Not reported | ALPINE-CVE-2019-14834 | Not reported |
| Alpine | dnsmasq | apk | 3.24 | 2.80-r5 | Not reported | ALPINE-CVE-2019-14834 | Not reported |
| Alpine | dnsmasq | apk | 3.8 | 2.79-r4 | Not reported | ALPINE-CVE-2019-14834 | Not reported |
| Alpine | dnsmasq | apk | 3.9 | 2.80-r4 | Not reported | ALPINE-CVE-2019-14834 | Not reported |
| Ubuntu | dnsmasq | deb | pro | 2.68-1ubuntu0.2+esm3 | Not reported | USN-7689-1 | Not reported |
| Ubuntu | dnsmasq | deb | 16.04 | 2.75-1ubuntu0.16.04.7 | Not reported | USN-4698-1 | Not reported |
| Ubuntu | dnsmasq | deb | 18.04 | 2.79-1ubuntu0.2 | Not reported | USN-4698-1 | Not reported |
| Ubuntu | dnsmasq | deb | 20.04 | 2.80-1.1ubuntu1.2 | Not reported | USN-4698-1 | Not reported |
| Suse | dnsmasq | rpm | linux enterprise server 11 sp4-ltss | 2.78-0.17.15.1 | Not reported | SUSE-SU-2021:14603-1 | Not reported |
| Suse | dnsmasq | rpm | hpe helion openstack 8 | 2.78-18.12.1 | Not reported | SUSE-SU-2020:0419-1 | Not reported |
| Suse | dnsmasq | rpm | openstack cloud 7 | 2.78-18.12.1 | Not reported | SUSE-SU-2020:0419-1 | Not reported |
| Suse | dnsmasq | rpm | openstack cloud 8 | 2.78-18.12.1 | Not reported | SUSE-SU-2020:0419-1 | Not reported |
| Suse | dnsmasq | rpm | openstack cloud 9 | 2.78-18.12.1 | Not reported | SUSE-SU-2020:0419-1 | Not reported |
| Suse | dnsmasq | rpm | openstack cloud crowbar 8 | 2.78-18.12.1 | Not reported | SUSE-SU-2020:0419-1 | Not reported |
| Suse | dnsmasq | rpm | openstack cloud crowbar 9 | 2.78-18.12.1 | Not reported | SUSE-SU-2020:0419-1 | Not reported |
| Suse | dnsmasq | rpm | linux enterprise desktop 12 sp4 | 2.78-18.12.1 | Not reported | SUSE-SU-2020:0419-1 | Not reported |
| Suse | dnsmasq | rpm | linux enterprise server 12 sp4 | 2.78-18.12.1 | Not reported | SUSE-SU-2020:0419-1 | Not reported |
| Suse | dnsmasq | rpm | linux enterprise server for sap applications 12 sp4 | 2.78-18.12.1 | Not reported | SUSE-SU-2020:0419-1 | Not reported |
| Suse | dnsmasq | rpm | linux enterprise server 12 sp5 | 2.78-18.12.1 | Not reported | SUSE-SU-2020:0419-1 | Not reported |
| Suse | dnsmasq | rpm | linux enterprise server for sap applications 12 sp5 | 2.78-18.12.1 | Not reported | SUSE-SU-2020:0419-1 | Not reported |
| Ubuntu | dnsmasq | deb | pro | 2.68-1ubuntu0.2+esm3 | Not reported | UBUNTU-CVE-2019-14834 | Not reported |
| Ubuntu | dnsmasq | deb | 16.04 | 2.75-1ubuntu0.16.04.7 | Not reported | UBUNTU-CVE-2019-14834 | Not reported |
| Ubuntu | dnsmasq | deb | 18.04 | 2.79-1ubuntu0.2 | Not reported | UBUNTU-CVE-2019-14834 | Not reported |
| Ubuntu | dnsmasq | deb | 20.04 | 2.80-1.1ubuntu1.2 | Not reported | UBUNTU-CVE-2019-14834 | Not reported |
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
[Debian 12 (Bookworm)]
- [dnsmasq]Unknown
Details (4)
2.90-4~deb12u2· all · bookwormFixed · Fixed:
2.81-1dsa · dnsmasq · debian · bookworm; dsa · dnsmasq · debian · 12
2.90-4~deb12u2· all · bookwormFixed · Fixed:
2.81-1dsa · dnsmasq · debian · bookworm; dsa · dnsmasq · debian · 12
2.90-4~deb12u2· all · bookworm-securityFixed · Fixed:
2.81-1dsa · dnsmasq · debian · bookworm; dsa · dnsmasq · debian · 12
2.90-4~deb12u2· all · bookworm-securityFixed · Fixed:
2.81-1dsa · dnsmasq · debian · bookworm; dsa · dnsmasq · debian · 12
- [dnsmasq-base]Unknown
Source package: [dnsmasq]
Details (4)
2.90-4~deb12u2· amd64 · bookwormFixed · Fixed:
2.81-1dsa · dnsmasq · debian · bookworm; dsa · dnsmasq · debian · 12
2.90-4~deb12u2· arm64 · bookwormFixed · Fixed:
2.81-1dsa · dnsmasq · debian · bookworm; dsa · dnsmasq · debian · 12
2.90-4~deb12u2· amd64 · bookworm-securityFixed · Fixed:
2.81-1dsa · dnsmasq · debian · bookworm; dsa · dnsmasq · debian · 12
2.90-4~deb12u2· arm64 · bookworm-securityFixed · Fixed:
2.81-1dsa · dnsmasq · debian · bookworm; dsa · dnsmasq · debian · 12
- [dnsmasq-base-lua]Unknown
Source package: [dnsmasq]
Details (4)
2.90-4~deb12u2· amd64 · bookwormFixed · Fixed:
2.81-1dsa · dnsmasq · debian · bookworm; dsa · dnsmasq · debian · 12
2.90-4~deb12u2· arm64 · bookwormFixed · Fixed:
2.81-1dsa · dnsmasq · debian · bookworm; dsa · dnsmasq · debian · 12
2.90-4~deb12u2· amd64 · bookworm-securityFixed · Fixed:
2.81-1dsa · dnsmasq · debian · bookworm; dsa · dnsmasq · debian · 12
2.90-4~deb12u2· arm64 · bookworm-securityFixed · Fixed:
2.81-1dsa · dnsmasq · debian · bookworm; dsa · dnsmasq · debian · 12
- [dnsmasq-utils]Unknown
Source package: [dnsmasq]
Details (4)
2.90-4~deb12u2· amd64 · bookwormFixed · Fixed:
2.81-1dsa · dnsmasq · debian · bookworm; dsa · dnsmasq · debian · 12
2.90-4~deb12u2· arm64 · bookwormFixed · Fixed:
2.81-1dsa · dnsmasq · debian · bookworm; dsa · dnsmasq · debian · 12
2.90-4~deb12u2· amd64 · bookworm-securityFixed · Fixed:
2.81-1dsa · dnsmasq · debian · bookworm; dsa · dnsmasq · debian · 12
2.90-4~deb12u2· arm64 · bookworm-securityFixed · Fixed:
2.81-1dsa · dnsmasq · debian · bookworm; dsa · dnsmasq · debian · 12
[Debian 13 (Trixie)]
- [dnsmasq]Unknown
Details (4)
2.91-1+deb13u1· all · trixieFixed · Fixed:
2.81-1dsa · dnsmasq · debian · 13
2.91-1+deb13u1· all · trixieFixed · Fixed:
2.81-1dsa · dnsmasq · debian · 13
2.91-1+deb13u1· all · trixie-securityFixed · Fixed:
2.81-1dsa · dnsmasq · debian · 13
2.91-1+deb13u1· all · trixie-securityFixed · Fixed:
2.81-1dsa · dnsmasq · debian · 13
- [dnsmasq-base]Unknown
Source package: [dnsmasq]
Details (4)
2.91-1+deb13u1· amd64 · trixieFixed · Fixed:
2.81-1dsa · dnsmasq · debian · 13
2.91-1+deb13u1· arm64 · trixieFixed · Fixed:
2.81-1dsa · dnsmasq · debian · 13
2.91-1+deb13u1· amd64 · trixie-securityFixed · Fixed:
2.81-1dsa · dnsmasq · debian · 13
2.91-1+deb13u1· arm64 · trixie-securityFixed · Fixed:
2.81-1dsa · dnsmasq · debian · 13
- [dnsmasq-base-lua]Unknown
Source package: [dnsmasq]
Details (4)
2.91-1+deb13u1· amd64 · trixieFixed · Fixed:
2.81-1dsa · dnsmasq · debian · 13
2.91-1+deb13u1· arm64 · trixieFixed · Fixed:
2.81-1dsa · dnsmasq · debian · 13
2.91-1+deb13u1· amd64 · trixie-securityFixed · Fixed:
2.81-1dsa · dnsmasq · debian · 13
2.91-1+deb13u1· arm64 · trixie-securityFixed · Fixed:
2.81-1dsa · dnsmasq · debian · 13
- [dnsmasq-utils]Unknown
Source package: [dnsmasq]
Details (4)
2.91-1+deb13u1· amd64 · trixieFixed · Fixed:
2.81-1dsa · dnsmasq · debian · 13
2.91-1+deb13u1· arm64 · trixieFixed · Fixed:
2.81-1dsa · dnsmasq · debian · 13
2.91-1+deb13u1· amd64 · trixie-securityFixed · Fixed:
2.81-1dsa · dnsmasq · debian · 13
2.91-1+deb13u1· arm64 · trixie-securityFixed · Fixed:
2.81-1dsa · dnsmasq · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2020_1715.json]
- [https://osv.dev/vulnerability/ALPINE-CVE-2019-14834]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2019-14834]
- [https://osv.dev/vulnerability/SUSE-SU-2020:0419-1]
- [https://osv.dev/vulnerability/SUSE-SU-2021:14603-1]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2019-14834]
- [https://osv.dev/vulnerability/USN-4698-1]
- [https://osv.dev/vulnerability/USN-7689-1]
- [https://security-tracker.debian.org/tracker/CVE-2019-14834]
- [https://security.access.redhat.com/data/csaf/v2/vex/2019/cve-2019-14834.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2019/wid-sec-w-2023-0719.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]