Combination of DNS64 and RPZ Can Lead to Crash
Published Jan 16, 2019
7.5
HIGHCVSS 3.0
EPSS 17.24%
Description
Under some conditions when using both DNS64 and RPZ to rewrite query responses, query processing can resume in an inconsistent state leading to either an INSIST assertion failure or an attempt to read through a NULL pointer. Affects BIND 9.8.8, 9.9.3-S1 -> 9.9.9-S7, 9.9.3 -> 9.9.9-P5, 9.9.10b1, 9.10.0 -> 9.10.4-P5, 9.10.5b1, 9.11.0 -> 9.11.0-P2, 9.11.1b1.
Affected products
-
- Version BIND 9 9.8.8, 9.9.3-S1 -> 9.9.9-S7, 9.9.3 -> 9.9.9-P5, 9.9.10b1, 9.10.0 -> 9.10.4-P5, 9.10.5b1, 9.11.0 -> 9.11.0-P2, 9.11.1b1StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
Configuration 1
- 9.9.3
- 9.9.3
- 9.9.8
- 9.9.9
- 9.9.9
- 9.9.10
- 9.10.0
- 9.10.4
- 9.10.4
- 9.10.4
- 9.10.4
- 9.10.4
- 9.10.5
- 9.11.0
- 9.11.0
- 9.11.0
- 9.11.1
Configuration 2
- 7.0
- 7.0
- 7.3
- 7.4
- 7.6
- 7.3
- 7.4
- 7.5
- 7.6
- 7.3
- 7.6
- 7.0
Configuration 3
- n/a
- n/a
Configuration 4
- 8.0
- 9.0
No data.
Red Hat Enterprise Linux 7
bind-32:9.9.4-38.el7_3.2
Fixed · RHSA-2017:0276
Red Hat Enterprise Linux 5
bind
Not affected
Red Hat Enterprise Linux 5
bind97
Not affected
Red Hat Enterprise Linux 6
bind
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | bind-32:9.9.4-38.el7_3.2 | Fixed | RHSA-2017:0276 |
| Red Hat Enterprise Linux 5 | bind | Not affected | n/a |
| Red Hat Enterprise Linux 5 | bind97 | Not affected | n/a |
| Red Hat Enterprise Linux 6 | bind | 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-P6 BIND 9 version 9.10.4-P6 BIND 9 version 9.11.0-P3
BIND Supported Preview Edition is a special feature preview branch of BIND provided to eligible ISC support customers.
BIND 9 version 9.9.9-S8
Red Hat mitigation
While it is possible to avoid the condition by removing either DNS64 or RPZ from the configuration, or by carefully restricting the contents of the policy zone, for an affected configuration the most practical and safest course of action is to upgrade to a version of BIND without this vulnerability.
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
1 other source (CVE.org) ▾
CVSS:3.0/AV:N/AC:L/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 (32 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 17.24% (0.17243) | 97.01th | v5 (v2026.06.15) |
| Sep 22, 2026 | 17.24% (0.17243) | 96.96th | v5 (v2026.06.15) |
| Sep 21, 2026 | 15.67% (0.15671) | 96.75th | v5 (v2026.06.15) |
| Sep 6, 2026 | 17.24% (0.17243) | 96.89th | v5 (v2026.06.15) |
| Sep 5, 2026 | 15.67% (0.15671) | 96.68th | v5 (v2026.06.15) |
| Aug 30, 2026 | 17.24% (0.17243) | 96.88th | v5 (v2026.06.15) |
| Aug 28, 2026 | 15.67% (0.15671) | 96.66th | v5 (v2026.06.15) |
| Aug 24, 2026 | 17.24% (0.17243) | 96.86th | v5 (v2026.06.15) |
| Aug 23, 2026 | 15.67% (0.15671) | 96.65th | v5 (v2026.06.15) |
| Jun 23, 2026 | 17.11% (0.17108) | 96.68th | v5 (v2026.06.15) |
| Jun 15, 2026 | 29.24% (0.29238) | 97.92th | v5 (v2026.06.15) |
| May 28, 2026 | 45.41% (0.45408) | 97.66th | v4 (v2025.03.14) |
| Dec 17, 2025 | 34.41% (0.34413) | 96.83th | v4 (v2025.03.14) |
| Mar 30, 2025 | 35.73% (0.35731) | 96.75th | v4 (v2025.03.14) |
| Mar 29, 2025 | 27.91% (0.27912) | 94.39th | v4 (v2025.03.14) |
| Mar 17, 2025 | 35.73% (0.35731) | 96.71th | v4 (v2025.03.14) |
| Mar 13, 2025 | 11.74% (0.11744) | 95.42th | v3 (v2023.03.01) |
| Dec 26, 2024 | 14.18% (0.14184) | 95.67th | v3 (v2023.03.01) |
| Dec 17, 2024 | 12.09% (0.12088) | 95.34th | v3 (v2023.03.01) |
| Oct 31, 2024 | 13.35% (0.13345) | 95.72th | v3 (v2023.03.01) |
| Sep 17, 2024 | 20.38% (0.20375) | 96.45th | v3 (v2023.03.01) |
| Jul 21, 2024 | 7.01% (0.07012) | 94.02th | v3 (v2023.03.01) |
| Feb 8, 2024 | 9.60% (0.09596) | 94.59th | v3 (v2023.03.01) |
| Jan 10, 2024 | 26.77% (0.26774) | 96.32th | v3 (v2023.03.01) |
| Mar 7, 2023 | 21.48% (0.21479) | 95.64th | 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://rhn.redhat.com/errata/RHSA-2017-0276.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://www.securityfocus.com/bid/96150 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1037801 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2017-3135 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1420193 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-01453
- https://kb.isc.org/docs/aa-01453 x_refsource_CONFIRMVendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2017-3135
- https://security.gentoo.org/glsa/201708-01 vendor-advisoryx_refsource_GENTOOThird Party Advisory
- https://security.netapp.com/advisory/ntap-20180926-0005/ x_refsource_CONFIRMThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2017-3135
- https://www.debian.org/security/2017/dsa-3795 vendor-advisoryx_refsource_DEBIANThird Party Advisory
Change history (0)
No recorded changes yet.