An error in TSIG authentication can permit unauthorized dynamic updates

published 2019-01-16 7 y ago modified 2026-06-17 4 mo ago also EUVD-2017-12284

cvss: 7.5; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 18.2%; EPSS 18.2% chance of exploitation in 30 days, percentile 97%
public exploits: 0; none known

An attacker who is able to send and receive messages to an authoritative DNS server and who has knowledge of a valid TSIG key name for the zone and service being targeted may be able to manipulate BIND into accepting an unauthorized dynamic update. Affects BIND 9.4.0->9.8.8, 9.9.0->9.9.10-P1, 9.10.0->9.10.5-P1, 9.11.0->9.11.1-P1, 9.9.3-S1->9.9.10-S2, 9.10.5-S1->9.10.5-S2.

Patch / fix

distros 6

debian ubuntu red hat suse alpine arch linux

bind9 Debian 14, Debian 13, Debian 12 1:9.10.3.dfsg.P4-12.4

debian advisories DEBIAN-CVE-2017-3143

bind9 Ubuntu 14.04 LTS 1:9.9.5.dfsg-3ubuntu0.15
bind9 Ubuntu 16.04 LTS 1:9.10.3.dfsg.P4-8ubuntu1.7

ubuntu advisories UBUNTU-CVE-2017-3143

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

bind RHEL 7 32:9.9.4-50.el7_3.1
bind-sdb RHEL 7 32:9.9.4-50.el7_3.1
bind-libs RHEL 7 32:9.9.4-50.el7_3.1
bind-utils RHEL 7 32:9.9.4-50.el7_3.1
bind-chroot RHEL 7 32:9.9.4-50.el7_3.1
bind-pkcs11 RHEL 7 32:9.9.4-50.el7_3.1
bind-license RHEL 7 32:9.9.4-50.el7_3.1
bind-libs-lite RHEL 7 32:9.9.4-50.el7_3.1

red hat advisories RHSA-2017:1680 RHSA-2017:1679

bind SLES for SAP 11 SP4, SLES 11 SP4, SLES 11 SP3-TERADATA +3 more 9.9.6P1-0.50.1
bind SLES for SAP 12 SP2, SLES for SAP 12 SP1, SLES for Raspberry Pi 12 SP2 +5 more 9.9.9P1-62.1
bind SLES for SAP 12, SLES 12-LTSS 9.9.9P1-28.37.1

suse advisories SUSE-SU-2017:1737-1 SUSE-SU-2017:1736-1 SUSE-SU-2017:1738-1

bind Alpine 3.5, Alpine 3.4, Alpine 3.3 9.10.4_p8-r1
bind Alpine 3.6 9.11.1_p1-r1
bind Alpine 3.7 9.11.3-r0

alpine advisories ALPINE-CVE-2017-3143

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

bind Arch Linux 9.11.1.P2-1

arch linux advisories AVG-335

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2017-3143 updated 2026-11-04 cvss 7.5

bind: An error in TSIG authentication can permit unauthorized dynamic updates

Red Hat Enterprise Linux 5 bind97
affected: workaround, no fix planned “Will not fix”
Red Hat Enterprise Linux Client (v. 7) bind 9.9.4-50.el7_3.1, bind-libs 9.9.4-50.el7_3.1, bind-utils 9.9.4-50.el7_3.1, bind-license 9.9.4-50.el7_3.1, bind-libs-lite 9.9.4-50.el7_3.1 Red Hat Enterprise Linux Client Optional (v. 7) bind 9.9.4-50.el7_3.1, bind-sdb 9.9.4-50.el7_3.1, bind-chroot 9.9.4-50.el7_3.1, bind-pkcs11 9.9.4-50.el7_3.1, bind-sdb-chroot 9.9.4-50.el7_3.1, bind-pkcs11-libs 9.9.4-50.el7_3.1, +1 more Red Hat Enterprise Linux ComputeNode (v. 7) bind 9.9.4-50.el7_3.1, bind-libs 9.9.4-50.el7_3.1, bind-utils 9.9.4-50.el7_3.1, bind-license 9.9.4-50.el7_3.1, bind-libs-lite 9.9.4-50.el7_3.1 Red Hat Enterprise Linux ComputeNode Optional (v. 7) bind 9.9.4-50.el7_3.1, bind-sdb 9.9.4-50.el7_3.1, bind-chroot 9.9.4-50.el7_3.1, bind-pkcs11 9.9.4-50.el7_3.1, bind-sdb-chroot 9.9.4-50.el7_3.1, bind-pkcs11-libs 9.9.4-50.el7_3.1, +1 more
fixed: vendor fix RHSA-2017:1680
Red Hat Enterprise Linux Desktop (v. 6) bind 9.8.2-0.62.rc1.el6_9.4, bind-libs 9.8.2-0.62.rc1.el6_9.4, bind-utils 9.8.2-0.62.rc1.el6_9.4 Red Hat Enterprise Linux Desktop Optional (v. 6) bind 9.8.2-0.62.rc1.el6_9.4, bind-sdb 9.8.2-0.62.rc1.el6_9.4, bind-chroot 9.8.2-0.62.rc1.el6_9.4 Red Hat Enterprise Linux HPC Node (v. 6) bind 9.8.2-0.62.rc1.el6_9.4, bind-libs 9.8.2-0.62.rc1.el6_9.4, bind-utils 9.8.2-0.62.rc1.el6_9.4 Red Hat Enterprise Linux HPC Node Optional (v. 6) bind 9.8.2-0.62.rc1.el6_9.4, bind-sdb 9.8.2-0.62.rc1.el6_9.4, bind-chroot 9.8.2-0.62.rc1.el6_9.4 Red Hat Enterprise Linux Server (v. 6) bind 9.8.2-0.62.rc1.el6_9.4, bind-libs 9.8.2-0.62.rc1.el6_9.4, bind-utils 9.8.2-0.62.rc1.el6_9.4, bind-chroot 9.8.2-0.62.rc1.el6_9.4
fixed: vendor fix RHSA-2017:1679
Red Hat Enterprise Linux Server (v. 7) bind 9.9.4-50.el7_3.1, bind-libs 9.9.4-50.el7_3.1, bind-utils 9.9.4-50.el7_3.1, bind-chroot 9.9.4-50.el7_3.1, bind-pkcs11 9.9.4-50.el7_3.1, bind-license 9.9.4-50.el7_3.1, +3 more
fixed: vendor fix RHSA-2017:1680
Red Hat Enterprise Linux Server Optional (v. 6) bind-sdb 9.8.2-0.62.rc1.el6_9.4
fixed: vendor fix RHSA-2017:1679
Red Hat Enterprise Linux Server Optional (v. 7) bind-sdb 9.9.4-50.el7_3.1, bind-pkcs11 9.9.4-50.el7_3.1, bind-sdb-chroot 9.9.4-50.el7_3.1, bind-pkcs11-libs 9.9.4-50.el7_3.1, bind-pkcs11-utils 9.9.4-50.el7_3.1
fixed: vendor fix RHSA-2017:1680
Red Hat Enterprise Linux Workstation (v. 6) bind 9.8.2-0.62.rc1.el6_9.4, bind-libs 9.8.2-0.62.rc1.el6_9.4, bind-utils 9.8.2-0.62.rc1.el6_9.4, bind-chroot 9.8.2-0.62.rc1.el6_9.4
fixed: vendor fix RHSA-2017:1679
Red Hat Enterprise Linux Workstation (v. 7) bind 9.9.4-50.el7_3.1, bind-libs 9.9.4-50.el7_3.1, bind-utils 9.9.4-50.el7_3.1, bind-chroot 9.9.4-50.el7_3.1, bind-pkcs11 9.9.4-50.el7_3.1, bind-license 9.9.4-50.el7_3.1, +3 more
fixed: vendor fix RHSA-2017:1680

show 3 more

Red Hat Enterprise Linux Workstation Optional (v. 6) bind-sdb 9.8.2-0.62.rc1.el6_9.4
fixed: vendor fix RHSA-2017:1679
Red Hat Enterprise Linux Workstation Optional (v. 7) bind-sdb 9.9.4-50.el7_3.1, bind-sdb-chroot 9.9.4-50.el7_3.1
fixed: vendor fix RHSA-2017:1680
Red Hat Enterprise Linux 5 bind
not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

18.16% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.0	7.5	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
NVD	3.0	5.9	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
NVD	2.0	4.3	AV:N/AC:M/Au:N/C:N/I:P/A:N

Affected products

ISC BIND 9

References

access.redhat.com /errata/RHSA-2017:1680
vendor-advisory, third-party-advisory
access.redhat.com /errata/RHSA-2017:1679
vendor-advisory, third-party-advisory
debian.org /security/2017/dsa-3904
vendor-advisory, third-party-advisory
kb.isc.org /docs/aa-01503
vendor-advisory
h20566.www2.hpe.com /hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03772en_us
third-party-advisory
securitytracker.com /id/1038809
vdb-entry, third-party-advisory
securityfocus.com /bid/99337
vdb-entry, third-party-advisory
security.netapp.com /advisory/ntap-20190830-0003/

Sources

CVE List CVE-2017-3143
NVD CVE-2017-3143

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary