CVE-2019-6468

BIND Supported Preview Edition can exit with an assertion failure if nxdomain-redirect is used

Published Oct 9, 2019 CVSS 3.1 · 7.5 High EPSS 2.6% KEV · Not listed
Description
In BIND Supported Preview Edition, an error in the nxdomain-redirect feature can occur in versions which support EDNS Client Subnet (ECS) features. In those versions which have ECS support, enabling nxdomain-redirect is likely to lead to BIND exiting due to assertion failure. Versions affected: BIND Supported Preview Edition version 9.10.5-S1 -> 9.11.5-S5. ONLY BIND Supported Preview Edition releases are affected.

Remediation

Vendor Solution

Upgrade to the patched release most closely related to your current version of BIND: BIND Supported Preview Edition is a special feature preview branch of BIND provided to eligible ISC support customers. + BIND 9.11.5-S6 + BIND 9.11.6-S1


Vendor Workaround

Exploitation of this defect can be effectively prevented by disabling the nxdomain-redirect feature in the nameserver's configuration.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2019-16028 In BIND Supported Preview Edition, an error in the nxdomain-redirect feature can occur in versions which support EDNS Client Subnet (ECS) features. In those versions which have ECS support, enabling nxdomain-redirect is likely to lead to BIND exiting due to assertion failure. Versions affected: BIND Supported Preview Edition version 9.10.5-S1 -> 9.11.5-S5. ONLY BIND Supported Preview Edition releases are affected.
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
isc
Published
Updated
Sep 16, 2024, 6:44 PM
Reserved
Jan 16, 2019, 12:00 AM
Status
Modified
Published
Oct 9, 2019, 4:15 PM
Modified
Jun 17, 2026, 2:39 AM
Severity
Moderate
Public date
Apr 24, 2019, 12:00 AM