CVE-2018-5741
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.
Does this matter?
Lower severity and a low EPSS score (3.48%). Track it; it rarely justifies an emergency change on its own.
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 3.0
- 6.5 MEDIUMCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
- EPSS
- 3.48% probability · 89th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-863
- Affected
- isc/bind
- Source
- security-officer@isc.org
EPSS 3.5% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
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 Advisory, VDB Entry
- http://www.securitytracker.com/id/1041674Third Party Advisory, VDB 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-hpesbux03927en_us
- 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 Advisory, VDB Entry
- http://www.securitytracker.com/id/1041674Third Party Advisory, VDB 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-hpesbux03927en_us
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.