vulnerability

FreeBSD: VID-8d3bae09-fd28-11e7-95f2-005056925db4 (CVE-2017-15105): unbound -- vulnerability in the processing of wildcard synthesized NSEC records

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Severity

CVSS

(AV:N/AC:L/Au:N/C:N/I:P/A:N)

Published

Jan 19, 2018

Added

Jan 20, 2018

Modified

Jun 15, 2026

Description

A flaw was found in the way unbound before 1.6.8 validated wildcard-synthesized NSEC records. An improperly validated wildcard NSEC record could be used to prove the non-existence (NXDOMAIN answer) of an existing wildcard record, or trick unbound into accepting a NODATA proof.

Solution

freebsd-upgrade-package-unbound

References

CVE-2017-15105
https://attackerkb.com/topics/CVE-2017-15105
CWE-358
CWE-20
EUVD-EUVD-2017-6570
https://euvd.enisa.europa.eu/vulnerability/EUVD-2017-6570

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