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Improper Input Validation Affecting unbound package, versions <1.7.1-1

0.0
medium

Snyk CVSS

    Attack Complexity Low

    Threat Intelligence

    EPSS 0.54% (78th percentile)
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NVD
5.3 medium
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Red Hat
5.4 medium

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  • Snyk ID SNYK-DEBIAN10-UNBOUND-320273
  • published 23 Jan 2018
  • disclosed 23 Jan 2018
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Introduced: 23 Jan 2018

CVE-2017-15105 Open this link in a new tab
CWE-20 Open this link in a new tab
CWE-358 Open this link in a new tab

How to fix?

Upgrade Debian:10 unbound to version 1.7.1-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream unbound package and not the unbound package as distributed by Debian. See How to fix? for Debian:10 relevant fixed versions and status.

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.