CVE-2017-3136 | An error handling synthesized records could cause an assertion failure when using DNS64 with "break-dnssec yes;"

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.

Published: 2019-01-16 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2017-3136 is rated Moderate Risk (52.4/100): CVSS Medium severity, with high exploitation likelihood (EPSS 16.24%, 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-2017-3136

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 2026-06-15 48.52% 16.24% -32.27%
2 2026-04-15 49.38% 48.52% -0.86%
3 2026-03-13 — 49.38% —

Full EPSS history (24 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-3136

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
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]
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-2017-3136

OS Trackers for CVE-2017-3136

vendor priority summary link
alpine — CVE-2017-3136: 1 source package rows (bind); 10 state rows across 10 repos (3.10-main, 3.11-main, 3.12-main, 3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 10, open 0. https://security.alpinelinux.org/vuln/CVE-2017-3136
debian not yet assigned CVE-2017-3136 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-2017-3136
gentoo normal CVE-2017-3136: 1 GLSA(s) (201708-01), 1 atom(s) (net-dns/bind); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2017-3136
redhat medium — https://access.redhat.com/security/cve/CVE-2017-3136
suse high CVE-2017-3136 severity important: SUSE including 313 source package names (0.1.0:sysuser-shadow-2.0-4.2.8, 0.1.75:sysuser-shadow-2.0-4.2.8, …), 696 product×package rows across 209 product lines (Container bci/bci-init, Container bci/dotnet-aspnet, … (209 product lines)): Fixed 616, Known Not Affected 80. https://www.suse.com/security/cve/CVE-2017-3136/
ubuntu medium CVE-2017-3136 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-2017-3136

Affected software / configurations for CVE-2017-3136

Vendor Product Version Raw CPE
isc bind >= 9.8.0, <= 9.8.8 cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*
isc bind >= 9.9.0, <= 9.9.9 cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*
isc bind >= 9.10.0, <= 9.10.4 cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*
isc bind 9.8.0 cpe:2.3:a:isc:bind:9.8.0:p1:*:*:*:*:*:*
isc bind 9.9.0 cpe:2.3:a:isc:bind:9.9.0:p1:*:*:*:*:*:*
isc bind 9.9.0 cpe:2.3:a:isc:bind:9.9.0:p2:*:*:*:*:*:*
isc bind 9.9.0 cpe:2.3:a:isc:bind:9.9.0:p3:*:*:*:*:*:*
isc bind 9.9.0 cpe:2.3:a:isc:bind:9.9.0:p4:*:*:*:*:*:*
isc bind 9.9.0 cpe:2.3:a:isc:bind:9.9.0:p5:*:*:*:*:*:*
isc bind 9.9.0 cpe:2.3:a:isc:bind:9.9.0:p6:*:*:*:*:*:*
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 9.9.10 cpe:2.3:a:isc:bind:9.9.10:beta1:*:*:*:*:*:*
isc bind 9.9.10 cpe:2.3:a:isc:bind:9.9.10:rc1:*:*:*:*:*:*
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 9.10.4 cpe:2.3:a:isc:bind:9.10.4:p6:*:*:*:*:*:*
isc bind 9.10.5 cpe:2.3:a:isc:bind:9.10.5:b1:*:*:*:*:*:*
isc bind 9.10.5 cpe:2.3:a:isc:bind:9.10.5:rc1:*:*:*:*:*:*
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 9.11.0 cpe:2.3:a:isc:bind:9.11.0:p3:*:*:*:*:*:*
isc bind 9.11.1 cpe:2.3:a:isc:bind:9.11.1:beta1:*:*:*:*:*:*
isc bind 9.11.1 cpe:2.3:a:isc:bind:9.11.1:rc1:*:*:*:*:*:*
redhat enterprise_linux_desktop 6.0 cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*
redhat enterprise_linux_desktop 7.0 cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
redhat enterprise_linux_server 6.0 cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*
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 6.0 cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*
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 — cpe:2.3:a:netapp:element_software:-:*:*:*:*:*:*:*
netapp oncommand_balance — cpe:2.3:a:netapp:oncommand_balance:-:*:*:*:*:*:*:*
debian debian_linux 8.0 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

References for CVE-2017-3136

URL Tags
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html
http://www.securityfocus.com/bid/97653 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1038259 Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2017:1095 Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:1105 Third Party Advisory
https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03747en_us Third Party Advisory
https://kb.isc.org/docs/aa-01465 Vendor Advisory
https://security.gentoo.org/glsa/201708-01 Third Party Advisory
https://security.netapp.com/advisory/ntap-20180802-0002/ Third Party Advisory
https://www.debian.org/security/2017/dsa-3854 Third Party Advisory
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