CVE-2017-3140

An error processing RPZ rules can cause named to loop endlessly after handling a query

Published Jan 16, 2019 CVSS 3.0 · 3.7 Low EPSS 12.2% KEV · Not listed
Description
If named is configured to use Response Policy Zones (RPZ) an error processing some rule types can lead to a condition where BIND will endlessly loop while handling a query. Affects BIND 9.9.10, 9.10.5, 9.11.0->9.11.1, 9.9.10-S1, 9.10.5-S1.

Remediation

Vendor 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 9.9.10-P1 BIND 9 version 9.10.5-P1 BIND 9 version 9.11.1-P1 BIND Supported Preview Edition is a special feature preview branch of BIND provided to eligible ISC support customers. BIND 9 version 9.9.10-S2 BIND 9 version 9.10.5-S2


Vendor Workaround

Only the NSDNAME and NSIP RPZ rule types can cause this condition to occur. You can work around this vulnerability if you are able to express your desired policy while avoiding NSDNAME or NSIP rules, otherwise it is advised that you upgrade to a version which corrects the defect.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Title An error processing RPZ rules can cause named to loop endlessly after handling a query An error processing RPZ rules can cause named to loop endlessly after handling a query
Weaknesses

Sources

Status
PUBLISHED
Assigner
isc
Published
Updated
Sep 17, 2024, 4:10 AM
Reserved
Dec 2, 2016, 12:00 AM
Status
Modified
Published
Jan 16, 2019, 8:29 PM
Modified
Jun 17, 2026, 1:17 AM
Severity
Moderate
Public date
Jun 14, 2017, 12:00 AM