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Uncontrolled Recursion Affecting unbound package, versions <1.9.0-2+deb10u2

0.0
high

Snyk CVSS

    Attack Complexity Low
    Availability High

    Threat Intelligence

    EPSS 1.54% (87th percentile)
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NVD
7.5 high
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Red Hat
7.5 high
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SUSE
8.6 high

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  • Snyk ID SNYK-DEBIAN10-UNBOUND-569680
  • published 19 May 2020
  • disclosed 19 May 2020
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Introduced: 19 May 2020

CVE-2020-12662 Open this link in a new tab
CWE-674 Open this link in a new tab

How to fix?

Upgrade Debian:10 unbound to version 1.9.0-2+deb10u2 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.

Unbound before 1.10.1 has Insufficient Control of Network Message Volume, aka an "NXNSAttack" issue. This is triggered by random subdomains in the NSDNAME in NS records.

References