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ISC BIND: Malformed NSEC records can cause named to terminate unexpectedly when synth-from-dnssec is enabled (CVE-2023-2829)

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ISC BIND: Malformed NSEC records can cause named to terminate unexpectedly when synth-from-dnssec is enabled (CVE-2023-2829)

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
06/21/2023
Created
08/02/2023
Added
08/01/2023
Modified
08/01/2023

Description

A `named` instance configured to run as a DNSSEC-validating recursive resolver with the Aggressive Use of DNSSEC-Validated Cache (RFC 8198) option (`synth-from-dnssec`) enabled can be remotely terminated using a zone with a malformed NSEC record. This issue affects BIND 9 versions 9.16.8-S1 through 9.16.41-S1 and 9.18.11-S1 through 9.18.15-S1.

Solution(s)

  • upgrade-isc-bind-latest

References

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