Vulnerability-Lookup

RHSA-2019:2057

Vulnerability from csaf_opensuse - Published: 2019-08-06 00:00 - Updated: 2026-09-20 11:04

Summary

security update for bind

Severity

Moderate

Notes

Title of the patch: security update for bind

Description of the patch: This security update provides a functional equivalent of RHSA-2019:2057. The original Red Hat(R) advisory is available from the Red Hat web site at https://access.redhat.com/errata/RHSA-2019:2057.

Patchnames: RHSA-2019:2057

CVE-2018-5741

6.5 (Medium)


                
                  CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Affected products

Recommended 24 products

Product	Version	Remediation
Unresolved product id: SUSE Liberty Linux 7:bind-32:9.11.4-9.P2.el7.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 7:bind-chroot-32:9.11.4-9.P2.el7.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 7:bind-devel-32:9.11.4-9.P2.el7.i686	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 7:bind-devel-32:9.11.4-9.P2.el7.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 7:bind-export-devel-32:9.11.4-9.P2.el7.i686	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 7:bind-export-devel-32:9.11.4-9.P2.el7.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 7:bind-export-libs-32:9.11.4-9.P2.el7.i686	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 7:bind-export-libs-32:9.11.4-9.P2.el7.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 7:bind-libs-32:9.11.4-9.P2.el7.i686	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 7:bind-libs-32:9.11.4-9.P2.el7.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 7:bind-libs-lite-32:9.11.4-9.P2.el7.i686	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 7:bind-libs-lite-32:9.11.4-9.P2.el7.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 7:bind-license-32:9.11.4-9.P2.el7.noarch	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 7:bind-lite-devel-32:9.11.4-9.P2.el7.i686	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 7:bind-lite-devel-32:9.11.4-9.P2.el7.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 7:bind-pkcs11-32:9.11.4-9.P2.el7.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 7:bind-pkcs11-devel-32:9.11.4-9.P2.el7.i686	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 7:bind-pkcs11-devel-32:9.11.4-9.P2.el7.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 7:bind-pkcs11-libs-32:9.11.4-9.P2.el7.i686	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 7:bind-pkcs11-libs-32:9.11.4-9.P2.el7.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 7:bind-pkcs11-utils-32:9.11.4-9.P2.el7.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 7:bind-sdb-32:9.11.4-9.P2.el7.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 7:bind-sdb-chroot-32:9.11.4-9.P2.el7.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 7:bind-utils-32:9.11.4-9.P2.el7.x86_64	—	Vendor Fix

Threats

Impact moderate

References

6 references

URL	Category
https://www.suse.com/support/security/rating/	external
https://ftp.suse.com/pub/projects/security/csaf/r…	self
https://www.suse.com/security/cve/CVE-2018-5741/	self
https://www.suse.com/security/cve/CVE-2018-5741	external
https://bugzilla.suse.com/1109160	external
https://bugzilla.suse.com/1171740	external

JSON

To clipboard

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CVE-2018-5741 (GCVE-0-2018-5741)

Vulnerability from cvelistv5 – Published: 2019-01-16 20:00 – Updated: 2024-09-17 02:26

Title

Update policies krb5-subdomain and ms-subdomain do not enforce controls promised in their documentation

Summary

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.

Severity

6.5 (Medium)


                        
                          CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

CWE

The krb5-subdomain and ms-subdomain update policy rule types permit updates from any client authenticated with a valid Kerberos or Windows machine principal from the REALM specified in the identity field, to modify records in the zone at or below the name specified in the name field. The incorrect documentation, however, indicated that the policy would be restricted to names at or below the machine's name as encoded in the Windows or Kerberos principal. For example, if named.conf contains the following configuration statement in the zone "example.com": zone example.com { ... update-policy { grant SUB.EXAMPLE.COM krb5-subdomain . ANY; }; }; ...then a client possessing a valid Kerberos machine principal for host/machine.sub.example.com@SUB.EXAMPLE.COM would be allowed to update any record at or below "example.com", whereas the documentation indicated that updates would only be permitted at or below "machine.sub.example.com". In practice, the name of the machine encoded in the principal is not checked to ensure that it matches the records to be updated. The update policy for the zone, having established that the client possesses a valid machine principal from the SUB.EXAMPLE.COM realm, simply allows updates to all records within the zone "example.com". The ms-subdomain rule type behaves similarly, but for Windows machine principals such as machine$@SUB.EXAMPLE.COM instead of Kerberos principals. The krb5-subdomain and ms-subdomain rules are intended to limit updates to names below the name field (in this example, ".", which covers the entire zone). Because of a separate bug in the named.conf parser, a name field below "." could not be configured in some releases. Maintenance releases of BIND released during or after October 2018 (9.11.5 or higher, 9.12.3 or higher) will address this configuration bug, as well as adding new krb5-selfsub and ms-selfsub rule types which more accurately implement the behavior that the ARM formerly attributed to krb5-subdomain and ms-subdomain.

Assigner

isc mitre root

References

9 references

URL	Tags
http://www.securityfocus.com/bid/105379	vdb-entryx_refsource_BID
http://www.securitytracker.com/id/1041674	vdb-entryx_refsource_SECTRACK
https://kb.isc.org/docs/cve-2018-5741	x_refsource_CONFIRM
https://security.gentoo.org/glsa/201903-13	vendor-advisoryx_refsource_GENTOO
https://support.hpe.com/hpsc/doc/public/display?d…	x_refsource_CONFIRM
https://access.redhat.com/errata/RHSA-2019:2057	vendor-advisoryx_refsource_REDHAT
https://security.netapp.com/advisory/ntap-2019083…	x_refsource_CONFIRM
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE

Impacted products

1 product

Vendor	Product	Version
ISC	BIND 9	Affected: BIND 9 Versions prior to BIND 9.11.5 and BIND 9.12.3

Date Public

2018-09-19 00:00

Show details on NVD website

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    "dateUpdated": "2024-09-17T02:26:39.095Z",
    "state": "PUBLISHED"
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  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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Action not permitted

RHSA-2019:2057

CVE-2018-5741 (GCVE-0-2018-5741)

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Related by attack behaviour