Vulnerability Description
To provide fine-grained controls over the ability to use Dynamic DNS (DDNS) to update records in a zone, BIND 9 provides a feature called update-policy. Various rules can be configured to limit the types of updates that can be performed by a client, depending on the key used when sending the update request. Unfortunately, some rule types were not initially documented, and when documentation for them was added to the Administrator Reference Manual (ARM) in change #3112, the language that was added to the ARM at that time incorrectly described the behavior of two rule types, krb5-subdomain and ms-subdomain. This incorrect documentation could mislead operators into believing that policies they had configured were more restrictive than they actually were. This affects BIND versions prior to BIND 9.11.5 and BIND 9.12.3.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Isc | Bind | < 9.11.5 |
Related Weaknesses (CWE)
References
- 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/105379Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1041674Third Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2019:2057
- https://kb.isc.org/docs/cve-2018-5741Vendor Advisory
- https://security.gentoo.org/glsa/201903-13Third Party Advisory
- https://security.netapp.com/advisory/ntap-20190830-0001/
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpe
- 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/105379Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1041674Third Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2019:2057
- https://kb.isc.org/docs/cve-2018-5741Vendor Advisory
FAQ
What is CVE-2018-5741?
CVE-2018-5741 is a vulnerability with a CVSS score of 6.5 (MEDIUM). To provide fine-grained controls over the ability to use Dynamic DNS (DDNS) to update records in a zone, BIND 9 provides a feature called update-policy. Various rules can be configured to limit the ty...
How severe is CVE-2018-5741?
CVE-2018-5741 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-5741?
Check the references section above for vendor advisories and patch information. Affected products include: Isc Bind.