CVE-2017-3135 | Combination of DNS64 and RPZ Can Lead to Crash

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.

Published: 2019-01-16 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2017-3135 is rated Moderate Risk (58.8/100): CVSS High severity, with high exploitation likelihood (EPSS 17.11%, 97th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2017-3135

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-23 29.24% 17.11% -12.13%
2 2026-06-15 45.41% 29.24% -16.17%
3 2026-05-28 — 45.41% —

Full EPSS history (22 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-3135

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.0 HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]
5.9 3.0 MEDIUM
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.2 3.6 [email protected]
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2017-3135

OS Trackers for CVE-2017-3135

vendor priority summary link
debian not yet assigned CVE-2017-3135 not yet assigned priority: Debian including 1 source packages (bind9), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2017-3135
gentoo normal CVE-2017-3135: 1 GLSA(s) (201708-01), 1 atom(s) (net-dns/bind); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2017-3135
redhat medium — https://access.redhat.com/security/cve/CVE-2017-3135
suse high CVE-2017-3135 severity important: SUSE including 446 source package names (amazon/suse-sles-15-sp1-chost-byos-v20210304-hvm-ssd-x86_64, amazon/suse-sles-15-sp1-chost-byos-v20220127-hvm-ssd-x86_64, …), 760 product×package rows across 72 product lines (SUSE CaaS Platform 3.0, SUSE CaaS Platform 4.0, … (72 product lines)): Fixed 395, Known Not Affected 208, Known Affected 157. https://www.suse.com/security/cve/CVE-2017-3135/
ubuntu medium CVE-2017-3135 medium priority: Ubuntu including 1 source packages (bind9), 6 status rows across 6 suites (precise, trusty, upstream, xenial, yakkety, zesty): released 5, needs-triage 1. https://ubuntu.com/security/CVE-2017-3135

Affected software / configurations for CVE-2017-3135

Vendor Product Version Raw CPE
isc bind 9.9.3 cpe:2.3:a:isc:bind:9.9.3:*:*:*:*:*:*:*
isc bind 9.9.3 cpe:2.3:a:isc:bind:9.9.3:s1:*:*:*:*:*:*
isc bind 9.9.8 cpe:2.3:a:isc:bind:9.9.8:*:*:*:*:*:*:*
isc bind 9.9.9 cpe:2.3:a:isc:bind:9.9.9:p5:*:*:*:*:*:*
isc bind 9.9.9 cpe:2.3:a:isc:bind:9.9.9:s7:*:*:*:*:*:*
isc bind 9.9.10 cpe:2.3:a:isc:bind:9.9.10:beta1:*:*:*:*:*:*
isc bind 9.10.0 cpe:2.3:a:isc:bind:9.10.0:*:*:*:*:*:*:*
isc bind 9.10.4 cpe:2.3:a:isc:bind:9.10.4:p1:*:*:*:*:*:*
isc bind 9.10.4 cpe:2.3:a:isc:bind:9.10.4:p2:*:*:*:*:*:*
isc bind 9.10.4 cpe:2.3:a:isc:bind:9.10.4:p3:*:*:*:*:*:*
isc bind 9.10.4 cpe:2.3:a:isc:bind:9.10.4:p4:*:*:*:*:*:*
isc bind 9.10.4 cpe:2.3:a:isc:bind:9.10.4:p5:*:*:*:*:*:*
isc bind 9.10.5 cpe:2.3:a:isc:bind:9.10.5:beta1:*:*:*:*:*:*
isc bind 9.11.0 cpe:2.3:a:isc:bind:9.11.0:*:*:*:*:*:*:*
isc bind 9.11.0 cpe:2.3:a:isc:bind:9.11.0:p1:*:*:*:*:*:*
isc bind 9.11.0 cpe:2.3:a:isc:bind:9.11.0:p2:*:*:*:*:*:*
isc bind 9.11.1 cpe:2.3:a:isc:bind:9.11.1:beta1:*:*:*:*:*:*
redhat enterprise_linux_desktop 7.0 cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
redhat enterprise_linux_server 7.0 cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
redhat enterprise_linux_server_aus 7.3 cpe:2.3:o:redhat:enterprise_linux_server_aus:7.3:*:*:*:*:*:*:*
redhat enterprise_linux_server_aus 7.4 cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:*
redhat enterprise_linux_server_aus 7.6 cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*
redhat enterprise_linux_server_eus 7.3 cpe:2.3:o:redhat:enterprise_linux_server_eus:7.3:*:*:*:*:*:*:*
redhat enterprise_linux_server_eus 7.4 cpe:2.3:o:redhat:enterprise_linux_server_eus:7.4:*:*:*:*:*:*:*
redhat enterprise_linux_server_eus 7.5 cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:*
redhat enterprise_linux_server_eus 7.6 cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:*
redhat enterprise_linux_server_tus 7.3 cpe:2.3:o:redhat:enterprise_linux_server_tus:7.3:*:*:*:*:*:*:*
redhat enterprise_linux_server_tus 7.6 cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*
redhat enterprise_linux_workstation 7.0 cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
netapp data_ontap_edge — cpe:2.3:a:netapp:data_ontap_edge:-:*:*:*:*:*:*:*
netapp element_software_management_node — cpe:2.3:a:netapp:element_software_management_node:-:*:*:*:*:*:*:*
debian debian_linux 8.0 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
debian debian_linux 9.0 cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

References for CVE-2017-3135

cvelogic Threat Intelligence