CVE-2017-3137

A response packet can cause a resolver to terminate when processing an answer containing a CNAME or DNAME

Description

Mistaken assumptions about the ordering of records in the answer section of a response containing CNAME or DNAME resource records could lead to a situation in which named would exit with an assertion failure when processing a response in which records occurred in an unusual order. Affects BIND 9.9.9-P6, 9.9.10b1->9.9.10rc1, 9.10.4-P6, 9.10.5b1->9.10.5rc1, 9.11.0-P3, 9.11.1b1->9.11.1rc1, and 9.9.9-S8.

Remediation

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

Workaround:

  • None known.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 34.99% Top 5%
Vendor Advisory redhat.com Vendor Advisory gentoo.org Vendor Advisory redhat.com Vendor Advisory debian.org Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory isc.org
Affected: ISC BIND 9
Published at:
Updated at:

References

Link Tags
https://access.redhat.com/errata/RHSA-2017:1095 third party advisory vendor advisory
https://security.gentoo.org/glsa/201708-01 third party advisory vendor advisory
http://www.securitytracker.com/id/1038258 third party advisory vdb entry
https://security.netapp.com/advisory/ntap-20180802-0002/ third party advisory
http://www.securitytracker.com/id/1040195 third party advisory vdb entry
https://access.redhat.com/errata/RHSA-2017:1582 third party advisory vendor advisory
https://www.debian.org/security/2017/dsa-3854 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2017:1583 third party advisory vendor advisory
http://www.securityfocus.com/bid/97651 third party advisory vdb entry
https://access.redhat.com/errata/RHSA-2017:1105 third party advisory vendor advisory
https://kb.isc.org/docs/aa-01466 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2017-3137?
CVE-2017-3137 has been scored as a high severity vulnerability.
How to fix CVE-2017-3137?
To fix CVE-2017-3137: 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
Is CVE-2017-3137 being actively exploited in the wild?
It is possible that CVE-2017-3137 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~35% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2017-3137?
CVE-2017-3137 affects ISC BIND 9.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.