An error handling synthesized records could cause an assertion failure when using DNS64 with "break-dnssec yes;"
Published Jan 16, 2019
5.9
MEDIUMCVSS 3.0
EPSS 11.18%
Description
A query with a specific set of characteristics could cause a server using DNS64 to encounter an assertion failure and terminate. An attacker could deliberately construct a query, enabling denial-of-service against a server if it was configured to use the DNS64 feature and other preconditions were met. Affects BIND 9.8.0 -> 9.8.8-P1, 9.9.0 -> 9.9.9-P6, 9.9.10b1->9.9.10rc1, 9.10.0 -> 9.10.4-P6, 9.10.5b1->9.10.5rc1, 9.11.0 -> 9.11.0-P3, 9.11.1b1->9.11.1rc1, 9.9.3-S1 -> 9.9.9-S8.
Affected products
-
- Version 9.8.0 -> 9.8.8-P1, 9.9.0 -> 9.9.9-P6, 9.9.10b1->9.9.10rc1, 9.10.0 -> 9.10.4-P6, 9.10.5b1->9.10.5rc1, 9.11.0 -> 9.11.0-P3, 9.11.1b1->9.11.1rc1, 9.9.3-S1 -> 9.9.9-S8StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
Configuration 1
- ≥ 9.8.0 · ≤ 9.8.8
- ≥ 9.9.0 · ≤ 9.9.9
- ≥ 9.10.0 · ≤ 9.10.4
- 9.8.0
- 9.9.0
- 9.9.0
- 9.9.0
- 9.9.0
- 9.9.0
- 9.9.0
- 9.9.3
- 9.9.3
- 9.9.10
- 9.9.10
- 9.10.4
- 9.10.4
- 9.10.4
- 9.10.4
- 9.10.4
- 9.10.4
- 9.10.5
- 9.10.5
- 9.11.0
- 9.11.0
- 9.11.0
- 9.11.0
- 9.11.1
- 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
- n/a
- n/a
- n/a
Configuration 4
- 8.0
No data.
Red Hat Enterprise Linux 6
bind-32:9.8.2-0.62.rc1.el6_9.1
Fixed · RHSA-2017:1105
Red Hat Enterprise Linux 7
bind-32:9.9.4-38.el7_3.3
Fixed · RHSA-2017:1095
Red Hat Enterprise Linux 5
bind
Not affected
Red Hat Enterprise Linux 5
bind97
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | bind-32:9.8.2-0.62.rc1.el6_9.1 | Fixed | RHSA-2017:1105 |
| Red Hat Enterprise Linux 7 | bind-32:9.9.4-38.el7_3.3 | Fixed | RHSA-2017:1095 |
| Red Hat Enterprise Linux 5 | bind | Not affected | n/a |
| Red Hat Enterprise Linux 5 | bind97 | Not affected | 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 9.9.9-P8 BIND 9 version 9.10.4-P8 BIND 9 version 9.11.0-P5
BIND Supported Preview Edition is a special feature preview branch of BIND provided to eligible ISC support customers.
BIND 9 version 9.9.9-S10
New maintenance releases of BIND are also scheduled which contain the fix for this vulnerability. In addition to the security releases listed above, fixes for this vulnerability are also included in these release candidate versions:
BIND 9 version 9.9.10rc3 BIND 9 version 9.10.5rc3 BIND 9 version 9.11.1rc3
Red Hat mitigation
Servers which have configurations which require DNS64 and "break-dnssec yes;" should upgrade. Servers which are not using these features in conjunction are not at risk from this defect.
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:N/I:N/A:H
AV:N/AC:M/Au:N/C:N/I:N/A:P
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 (25 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 11.18% (0.11183) | 95.83th | v5 (v2026.06.15) |
| Jun 23, 2026 | 11.09% (0.11093) | 95.35th | v5 (v2026.06.15) |
| Jun 15, 2026 | 16.24% (0.16242) | 96.53th | v5 (v2026.06.15) |
| Jan 20, 2026 | 49.38% (0.49378) | 97.69th | v4 (v2025.03.14) |
| Jan 18, 2026 | 46.11% (0.46106) | 97.54th | v4 (v2025.03.14) |
| Nov 11, 2025 | 49.73% (0.49729) | 97.67th | v4 (v2025.03.14) |
| Mar 30, 2025 | 37.88% (0.37879) | 96.90th | v4 (v2025.03.14) |
| Mar 29, 2025 | 29.86% (0.29858) | 94.70th | v4 (v2025.03.14) |
| Mar 17, 2025 | 37.88% (0.37879) | 96.86th | v4 (v2025.03.14) |
| Mar 13, 2025 | 14.20% (0.14199) | 95.81th | v3 (v2023.03.01) |
| Dec 26, 2024 | 17.03% (0.17033) | 96.04th | v3 (v2023.03.01) |
| Dec 17, 2024 | 12.81% (0.12811) | 95.46th | v3 (v2023.03.01) |
| Oct 31, 2024 | 10.43% (0.10429) | 95.16th | v3 (v2023.03.01) |
| Sep 17, 2024 | 12.17% (0.12174) | 95.50th | v3 (v2023.03.01) |
| Aug 22, 2024 | 6.21% (0.06215) | 93.70th | v3 (v2023.03.01) |
| Feb 8, 2024 | 8.54% (0.08538) | 94.23th | v3 (v2023.03.01) |
| Jan 10, 2024 | 16.82% (0.16820) | 95.55th | v3 (v2023.03.01) |
| Mar 7, 2023 | 13.07% (0.13074) | 94.59th | v3 (v2023.03.01) |
| Mar 6, 2023 | 3.36% (0.03358) | 84.40th | v2 (v2022.01.01) |
| Apr 1, 2022 | 3.36% (0.03358) | 82.80th | v2 (v2022.01.01) |
| Feb 4, 2022 | 3.36% (0.03358) | 65.90th | v2 (v2022.01.01) |
| Feb 3, 2022 | 2.48% (0.02476) | 54.92th | v1 |
| Jan 6, 2022 | 2.48% (0.02476) | 54.49th | v1 |
| Sep 1, 2021 | 2.48% (0.02476) | 78.74th | v1 |
| Apr 14, 2021 | 2.48% (0.02476) | 0.00th | v1 |
References (16)
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html vendor-advisoryx_refsource_SUSE
- http://www.securityfocus.com/bid/97653 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1038259 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2017:1095 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2017:1105 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2017-3136 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1441125 Issue Tracking
- https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03747en_us x_refsource_CONFIRMThird Party Advisory
- https://kb.isc.org/article/AA-01465
- https://kb.isc.org/docs/aa-01465 x_refsource_CONFIRMVendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2017-3136
- https://security.gentoo.org/glsa/201708-01 vendor-advisoryx_refsource_GENTOOThird Party Advisory
- https://security.netapp.com/advisory/ntap-20180802-0002/ x_refsource_CONFIRMThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2017-3136
- https://www.debian.org/security/2017/dsa-3854 vendor-advisoryx_refsource_DEBIANThird Party Advisory
Change history (0)
No recorded changes yet.