CVE catalog

CVE-2017-14491

dnsmasq: CVE-2017-14491

Severity: Critical · CVSS 9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: Oct 2, 2017, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 86.49% · Oct 25, 2026

Heap-based buffer overflow in dnsmasq before 2.78 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a crafted DNS response.

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
Android	platform/external/dnsmasq	Not reported	`11`	vulnerable
Android	platform/external/dnsmasq	Not reported	`11:2021-03-01`	fixed
Alpine	dnsmasq	3.10	`2.78-r0`	fixed
Alpine	dnsmasq	3.11	`2.78-r0`	fixed
Alpine	dnsmasq	3.12	`2.78-r0`	fixed
Alpine	dnsmasq	3.13	`2.78-r0`	fixed
Alpine	dnsmasq	3.14	`2.78-r0`	fixed
Alpine	dnsmasq	3.15	`2.78-r0`	fixed
Alpine	dnsmasq	3.16	`2.78-r0`	fixed
Alpine	dnsmasq	3.17	`2.78-r0`	fixed
Alpine	dnsmasq	3.18	`2.78-r0`	fixed
Alpine	dnsmasq	3.19	`2.78-r0`	fixed
Alpine	dnsmasq	3.20	`2.78-r0`	fixed
Alpine	dnsmasq	3.21	`2.78-r0`	fixed
Alpine	dnsmasq	3.22	`2.78-r0`	fixed
Alpine	dnsmasq	3.23	`2.78-r0`	fixed
Alpine	dnsmasq	3.24	`2.78-r0`	fixed
Alpine	dnsmasq	3.3	`2.76-r1`	fixed
Alpine	dnsmasq	3.4	`2.76-r1`	fixed
Alpine	dnsmasq	3.5	`2.76-r2`	fixed
Alpine	dnsmasq	3.6	`2.76-r5`	fixed
Alpine	dnsmasq	3.7	`2.78-r0`	fixed
Alpine	dnsmasq	3.8	`2.78-r0`	fixed
Alpine	dnsmasq	3.9	`2.78-r0`	fixed
Ubuntu	dnsmasq	14.04	`2.66-4ubuntu1`	vulnerable
Ubuntu	dnsmasq	14.04	`2.67-1`	vulnerable
Ubuntu	dnsmasq	14.04	`2.68-1`	vulnerable
Ubuntu	dnsmasq	14.04	`2.68-1ubuntu0.1`	vulnerable
Ubuntu	dnsmasq	14.04	`2.68-1ubuntu0.2`	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`	fixed
Ubuntu	dnsmasq	14.04	`2.66-4ubuntu1`	vulnerable
Ubuntu	dnsmasq	14.04	`2.67-1`	vulnerable
Ubuntu	dnsmasq	14.04	`2.68-1`	vulnerable
Ubuntu	dnsmasq	14.04	`2.68-1ubuntu0.1`	vulnerable
Ubuntu	dnsmasq	14.04	`2.68-1ubuntu0.2`	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`	fixed
Suse	dnsmasq	openstack cloud 6	`2.78-18.3.1`	fixed
Suse	dnsmasq	openstack cloud 7	`2.78-18.3.1`	fixed
Suse	dnsmasq	linux enterprise desktop 12 sp2	`2.78-18.3.1`	fixed
Suse	dnsmasq	linux enterprise desktop 12 sp3	`2.78-18.3.1`	fixed
Suse	dnsmasq	linux enterprise server for raspberry pi 12 sp2	`2.78-18.3.1`	fixed
Suse	dnsmasq	linux enterprise server for sap applications 12 sp1	`2.78-18.3.1`	fixed
Suse	dnsmasq	linux enterprise server 12 sp1-ltss	`2.78-18.3.1`	fixed
Suse	dnsmasq	linux enterprise server 12 sp2	`2.78-18.3.1`	fixed
Suse	dnsmasq	linux enterprise server for sap applications 12 sp2	`2.78-18.3.1`	fixed
Suse	dnsmasq	linux enterprise server 12 sp3	`2.78-18.3.1`	fixed
Suse	dnsmasq	linux enterprise server for sap applications 12 sp3	`2.78-18.3.1`	fixed
Opensuse	dnsmasq	tumbleweed	`2.86-1.1`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	dnsmasq	source	sid	`2.78-1`	not yet assigned	Not reported	Not reported
Debian	dnsmasq	source	forky	`2.78-1`	not yet assigned	Not reported	Not reported
Debian	dnsmasq	source	trixie	`2.78-1`	not yet assigned	Not reported	Not reported
Debian	dnsmasq	source	bookworm	`2.78-1`	not yet assigned	Not reported	Not reported
Android	platform/external/dnsmasq	Android	Not reported	`11:2021-03-01`	Not reported	ASB-A-158221622	Not reported
Alpine	dnsmasq	apk	3.10	`2.78-r0`	Not reported	ALPINE-CVE-2017-14491	Not reported
Alpine	dnsmasq	apk	3.11	`2.78-r0`	Not reported	ALPINE-CVE-2017-14491	Not reported
Alpine	dnsmasq	apk	3.12	`2.78-r0`	Not reported	ALPINE-CVE-2017-14491	Not reported
Alpine	dnsmasq	apk	3.13	`2.78-r0`	Not reported	ALPINE-CVE-2017-14491	Not reported
Alpine	dnsmasq	apk	3.14	`2.78-r0`	Not reported	ALPINE-CVE-2017-14491	Not reported
Alpine	dnsmasq	apk	3.15	`2.78-r0`	Not reported	ALPINE-CVE-2017-14491	Not reported
Alpine	dnsmasq	apk	3.16	`2.78-r0`	Not reported	ALPINE-CVE-2017-14491	Not reported
Alpine	dnsmasq	apk	3.17	`2.78-r0`	Not reported	ALPINE-CVE-2017-14491	Not reported
Alpine	dnsmasq	apk	3.18	`2.78-r0`	Not reported	ALPINE-CVE-2017-14491	Not reported
Alpine	dnsmasq	apk	3.19	`2.78-r0`	Not reported	ALPINE-CVE-2017-14491	Not reported
Alpine	dnsmasq	apk	3.20	`2.78-r0`	Not reported	ALPINE-CVE-2017-14491	Not reported
Alpine	dnsmasq	apk	3.21	`2.78-r0`	Not reported	ALPINE-CVE-2017-14491	Not reported
Alpine	dnsmasq	apk	3.22	`2.78-r0`	Not reported	ALPINE-CVE-2017-14491	Not reported
Alpine	dnsmasq	apk	3.23	`2.78-r0`	Not reported	ALPINE-CVE-2017-14491	Not reported
Alpine	dnsmasq	apk	3.24	`2.78-r0`	Not reported	ALPINE-CVE-2017-14491	Not reported
Alpine	dnsmasq	apk	3.3	`2.76-r1`	Not reported	ALPINE-CVE-2017-14491	Not reported
Alpine	dnsmasq	apk	3.4	`2.76-r1`	Not reported	ALPINE-CVE-2017-14491	Not reported
Alpine	dnsmasq	apk	3.5	`2.76-r2`	Not reported	ALPINE-CVE-2017-14491	Not reported
Alpine	dnsmasq	apk	3.6	`2.76-r5`	Not reported	ALPINE-CVE-2017-14491	Not reported
Alpine	dnsmasq	apk	3.7	`2.78-r0`	Not reported	ALPINE-CVE-2017-14491	Not reported
Alpine	dnsmasq	apk	3.8	`2.78-r0`	Not reported	ALPINE-CVE-2017-14491	Not reported
Alpine	dnsmasq	apk	3.9	`2.78-r0`	Not reported	ALPINE-CVE-2017-14491	Not reported
Ubuntu	dnsmasq	deb	14.04	`2.68-1ubuntu0.2`	Not reported	USN-3430-1	Not reported
Ubuntu	dnsmasq	deb	16.04	`2.75-1ubuntu0.16.04.3`	Not reported	USN-3430-1	Not reported
Ubuntu	dnsmasq	deb	14.04	`2.68-1ubuntu0.2`	Not reported	UBUNTU-CVE-2017-14491	Not reported
Ubuntu	dnsmasq	deb	16.04	`2.75-1ubuntu0.16.04.3`	Not reported	UBUNTU-CVE-2017-14491	Not reported
Suse	dnsmasq	rpm	openstack cloud 6	`2.78-18.3.1`	Not reported	SUSE-SU-2017:2618-1	Not reported
Suse	dnsmasq	rpm	openstack cloud 7	`2.78-18.3.1`	Not reported	SUSE-SU-2017:2618-1	Not reported
Suse	dnsmasq	rpm	linux enterprise desktop 12 sp2	`2.78-18.3.1`	Not reported	SUSE-SU-2017:2618-1	Not reported
Suse	dnsmasq	rpm	linux enterprise desktop 12 sp3	`2.78-18.3.1`	Not reported	SUSE-SU-2017:2618-1	Not reported
Suse	dnsmasq	rpm	linux enterprise server for raspberry pi 12 sp2	`2.78-18.3.1`	Not reported	SUSE-SU-2017:2618-1	Not reported
Suse	dnsmasq	rpm	linux enterprise server for sap applications 12 sp1	`2.78-18.3.1`	Not reported	SUSE-SU-2017:2618-1	Not reported
Suse	dnsmasq	rpm	linux enterprise server 12 sp1-ltss	`2.78-18.3.1`	Not reported	SUSE-SU-2017:2618-1	Not reported
Suse	dnsmasq	rpm	linux enterprise server 12 sp2	`2.78-18.3.1`	Not reported	SUSE-SU-2017:2618-1	Not reported
Suse	dnsmasq	rpm	linux enterprise server for sap applications 12 sp2	`2.78-18.3.1`	Not reported	SUSE-SU-2017:2618-1	Not reported
Suse	dnsmasq	rpm	linux enterprise server 12 sp3	`2.78-18.3.1`	Not reported	SUSE-SU-2017:2618-1	Not reported
Suse	dnsmasq	rpm	linux enterprise server for sap applications 12 sp3	`2.78-18.3.1`	Not reported	SUSE-SU-2017:2618-1	Not reported
Opensuse	dnsmasq	rpm	tumbleweed	`2.86-1.1`	Not reported	OPENSUSE-SU-2024:10721-1	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 · bookworm
  Fixed · Fixed: 2.78-1
  dsa · dnsmasq · debian · bookworm; dsa · dnsmasq · debian · 12
- 2.90-4~deb12u2 · all · bookworm
  Fixed · Fixed: 2.78-1
  dsa · dnsmasq · debian · bookworm; dsa · dnsmasq · debian · 12
- 2.90-4~deb12u2 · all · bookworm-security
  Fixed · Fixed: 2.78-1
  dsa · dnsmasq · debian · bookworm; dsa · dnsmasq · debian · 12
- 2.90-4~deb12u2 · all · bookworm-security
  Fixed · Fixed: 2.78-1
  dsa · dnsmasq · debian · bookworm; dsa · dnsmasq · debian · 12
[dnsmasq-base]Unknown
Source package: [dnsmasq]
Details (4)
- 2.90-4~deb12u2 · amd64 · bookworm
  Fixed · Fixed: 2.78-1
  dsa · dnsmasq · debian · bookworm; dsa · dnsmasq · debian · 12
- 2.90-4~deb12u2 · arm64 · bookworm
  Fixed · Fixed: 2.78-1
  dsa · dnsmasq · debian · bookworm; dsa · dnsmasq · debian · 12
- 2.90-4~deb12u2 · amd64 · bookworm-security
  Fixed · Fixed: 2.78-1
  dsa · dnsmasq · debian · bookworm; dsa · dnsmasq · debian · 12
- 2.90-4~deb12u2 · arm64 · bookworm-security
  Fixed · Fixed: 2.78-1
  dsa · dnsmasq · debian · bookworm; dsa · dnsmasq · debian · 12
[dnsmasq-base-lua]Unknown
Source package: [dnsmasq]
Details (4)
- 2.90-4~deb12u2 · amd64 · bookworm
  Fixed · Fixed: 2.78-1
  dsa · dnsmasq · debian · bookworm; dsa · dnsmasq · debian · 12
- 2.90-4~deb12u2 · arm64 · bookworm
  Fixed · Fixed: 2.78-1
  dsa · dnsmasq · debian · bookworm; dsa · dnsmasq · debian · 12
- 2.90-4~deb12u2 · amd64 · bookworm-security
  Fixed · Fixed: 2.78-1
  dsa · dnsmasq · debian · bookworm; dsa · dnsmasq · debian · 12
- 2.90-4~deb12u2 · arm64 · bookworm-security
  Fixed · Fixed: 2.78-1
  dsa · dnsmasq · debian · bookworm; dsa · dnsmasq · debian · 12
[dnsmasq-utils]Unknown
Source package: [dnsmasq]
Details (4)
- 2.90-4~deb12u2 · amd64 · bookworm
  Fixed · Fixed: 2.78-1
  dsa · dnsmasq · debian · bookworm; dsa · dnsmasq · debian · 12
- 2.90-4~deb12u2 · arm64 · bookworm
  Fixed · Fixed: 2.78-1
  dsa · dnsmasq · debian · bookworm; dsa · dnsmasq · debian · 12
- 2.90-4~deb12u2 · amd64 · bookworm-security
  Fixed · Fixed: 2.78-1
  dsa · dnsmasq · debian · bookworm; dsa · dnsmasq · debian · 12
- 2.90-4~deb12u2 · arm64 · bookworm-security
  Fixed · Fixed: 2.78-1
  dsa · dnsmasq · debian · bookworm; dsa · dnsmasq · debian · 12

[Debian 13 (Trixie)]

[dnsmasq]Unknown
Details (4)
- 2.91-1+deb13u1 · all · trixie
  Fixed · Fixed: 2.78-1
  dsa · dnsmasq · debian · 13
- 2.91-1+deb13u1 · all · trixie
  Fixed · Fixed: 2.78-1
  dsa · dnsmasq · debian · 13
- 2.91-1+deb13u1 · all · trixie-security
  Fixed · Fixed: 2.78-1
  dsa · dnsmasq · debian · 13
- 2.91-1+deb13u1 · all · trixie-security
  Fixed · Fixed: 2.78-1
  dsa · dnsmasq · debian · 13
[dnsmasq-base]Unknown
Source package: [dnsmasq]
Details (4)
- 2.91-1+deb13u1 · amd64 · trixie
  Fixed · Fixed: 2.78-1
  dsa · dnsmasq · debian · 13
- 2.91-1+deb13u1 · arm64 · trixie
  Fixed · Fixed: 2.78-1
  dsa · dnsmasq · debian · 13
- 2.91-1+deb13u1 · amd64 · trixie-security
  Fixed · Fixed: 2.78-1
  dsa · dnsmasq · debian · 13
- 2.91-1+deb13u1 · arm64 · trixie-security
  Fixed · Fixed: 2.78-1
  dsa · dnsmasq · debian · 13
[dnsmasq-base-lua]Unknown
Source package: [dnsmasq]
Details (4)
- 2.91-1+deb13u1 · amd64 · trixie
  Fixed · Fixed: 2.78-1
  dsa · dnsmasq · debian · 13
- 2.91-1+deb13u1 · arm64 · trixie
  Fixed · Fixed: 2.78-1
  dsa · dnsmasq · debian · 13
- 2.91-1+deb13u1 · amd64 · trixie-security
  Fixed · Fixed: 2.78-1
  dsa · dnsmasq · debian · 13
- 2.91-1+deb13u1 · arm64 · trixie-security
  Fixed · Fixed: 2.78-1
  dsa · dnsmasq · debian · 13
[dnsmasq-utils]Unknown
Source package: [dnsmasq]
Details (4)
- 2.91-1+deb13u1 · amd64 · trixie
  Fixed · Fixed: 2.78-1
  dsa · dnsmasq · debian · 13
- 2.91-1+deb13u1 · arm64 · trixie
  Fixed · Fixed: 2.78-1
  dsa · dnsmasq · debian · 13
- 2.91-1+deb13u1 · amd64 · trixie-security
  Fixed · Fixed: 2.78-1
  dsa · dnsmasq · debian · 13
- 2.91-1+deb13u1 · arm64 · trixie-security
  Fixed · Fixed: 2.78-1
  dsa · dnsmasq · debian · 13

[openSUSE Tumbleweed]

[dnsmasq]Unknown
Source package: [dnsmasq]
Details (1)
- 2.93-2.3 · x86_64 · tumbleweed
  Fixed · Fixed: 2.86-1.1
  dsa · dnsmasq · opensuse · tumbleweed
[dnsmasq-utils]Unknown
Source package: [dnsmasq]
Details (1)
- 2.93-2.3 · x86_64 · tumbleweed
  Unknown · Fixed: 2.86-1.1
  Version impact unknown
  dsa · dnsmasq · opensuse · tumbleweed

Observed: Oct 23, 2026, 5:26:52 PM UTC

References

[CISA cybersecurity advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]