An error in TSIG authentication can permit unauthorized zone transfers
Published Jan 16, 2019
5.3
MEDIUMCVSS 3.0
EPSS 5.40%
Description
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 may be able to circumvent TSIG authentication of AXFR requests via a carefully constructed request packet. A server that relies solely on TSIG keys for protection with no other ACL protection could be manipulated into: providing an AXFR of a zone to an unauthorized recipient or accepting bogus NOTIFY packets. 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.
Affected products
-
- Version 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-S2StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
Configuration 1
- ≥ 9.4.0 · ≤ 9.8.8
- ≥ 9.9.0 · ≤ 9.9.10
- ≥ 9.10.0 · ≤ 9.10.5
- ≥ 9.11.0 · ≤ 9.11.1
- 9.9.0
- 9.9.3
- 9.9.10
- 9.10.5
- 9.10.5
- 9.10.5
- 9.11.1
Configuration 2
- 6.0
- 7.0
- 6.0
- 7.0
- 7.3
- 7.4
- 7.6
- 7.3
- 7.4
- 7.5
- 7.6
- 7.3
- 7.6
- 6.0
- 7.0
Configuration 3
- 8.0
- 9.0
No data.
Red Hat Enterprise Linux 6
bind-32:9.8.2-0.62.rc1.el6_9.4
Fixed · RHSA-2017:1679
Red Hat Enterprise Linux 7
bind-32:9.9.4-50.el7_3.1
Fixed · RHSA-2017:1680
Red Hat Enterprise Linux 5
bind
Not affected
Red Hat Enterprise Linux 5
bind97
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | bind-32:9.8.2-0.62.rc1.el6_9.4 | Fixed | RHSA-2017:1679 |
| Red Hat Enterprise Linux 7 | bind-32:9.9.4-50.el7_3.1 | Fixed | RHSA-2017:1680 |
| Red Hat Enterprise Linux 5 | bind | Not affected | n/a |
| Red Hat Enterprise Linux 5 | bind97 | Will not fix | n/a |
No package ranges for this CVE.
Remediation
Vendor solution
Upgrade to the patched release most closely related to your current version of BIND. These can all be downloaded from http://www.isc.org/downloads.
BIND 9 version 9.9.10-P2 BIND 9 version 9.10.5-P2 BIND 9 version 9.11.1-P2
BIND Supported Preview Edition is a special feature preview branch of BIND provided to eligible ISC support customers.
BIND 9 version 9.9.10-S3 BIND 9 version 9.10.5-S3
Red Hat mitigation
The effects of this vulnerability can be mitigated by using Access Control Lists (ACLs) that require both address range validation and use of TSIG authentication in parallel. For information on how to configure this type of compound authentication control, please see: https://kb.isc.org/article/AA-00723/0/Using-Access-Control-Lists-ACLs-with-both-addresses-and-keys.html
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
1 other source (CVE.org) ▾
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
AV:N/AC:M/Au:N/C:P/I:N/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (22 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 5.40% (0.05400) | 92.43th | v5 (v2026.06.15) |
| Jun 23, 2026 | 5.38% (0.05375) | 91.61th | v5 (v2026.06.15) |
| Jun 15, 2026 | 10.23% (0.10229) | 95.07th | v5 (v2026.06.15) |
| Apr 1, 2026 | 4.95% (0.04951) | 89.61th | v4 (v2025.03.14) |
| Feb 19, 2026 | 6.53% (0.06527) | 90.92th | v4 (v2025.03.14) |
| Nov 11, 2025 | 5.13% (0.05134) | 89.38th | v4 (v2025.03.14) |
| Oct 14, 2025 | 3.77% (0.03771) | 87.49th | v4 (v2025.03.14) |
| Jun 19, 2025 | 5.23% (0.05228) | 89.46th | v4 (v2025.03.14) |
| Mar 17, 2025 | 3.07% (0.03068) | 85.83th | v4 (v2025.03.14) |
| Dec 26, 2024 | 2.97% (0.02972) | 90.64th | v3 (v2023.03.01) |
| Jun 1, 2024 | 0.72% (0.00720) | 80.60th | v3 (v2023.03.01) |
| Feb 8, 2024 | 1.02% (0.01019) | 83.29th | v3 (v2023.03.01) |
| Jan 10, 2024 | 3.95% (0.03947) | 91.13th | v3 (v2023.03.01) |
| May 8, 2023 | 3.12% (0.03119) | 89.61th | v3 (v2023.03.01) |
| Mar 7, 2023 | 3.66% (0.03656) | 90.27th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.60% (0.02596) | 82.09th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.60% (0.02596) | 80.30th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.60% (0.02596) | 61.79th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.86% (0.01865) | 48.06th | v1 |
| Jan 6, 2022 | 1.86% (0.01865) | 47.54th | v1 |
| Sep 1, 2021 | 1.86% (0.01865) | 76.13th | v1 |
| Apr 14, 2021 | 1.86% (0.01865) | 0.00th | v1 |
References (13)
- http://www.securityfocus.com/bid/99339 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1038809 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2017:1679 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2017:1680 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2017-3142 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1466189 Issue Tracking
- https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03772en_us x_refsource_CONFIRMThird Party Advisory
- https://kb.isc.org/article/AA-01504
- https://kb.isc.org/docs/aa-01504 x_refsource_CONFIRMVendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2017-3142
- https://security.netapp.com/advisory/ntap-20190830-0003/ x_refsource_CONFIRM
- https://www.cve.org/CVERecord?id=CVE-2017-3142
- https://www.debian.org/security/2017/dsa-3904 vendor-advisoryx_refsource_DEBIANThird Party Advisory
Change history (0)
No recorded changes yet.