Improper Input Validation Affecting bind9 package, versions <1:9.16.6-1
Threat Intelligence
EPSS
1.11% (85th
percentile)
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Test your applications- Snyk ID SNYK-DEBIANUNSTABLE-BIND9-608016
- published 21 Aug 2020
- disclosed 21 Aug 2020
Introduced: 21 Aug 2020
CVE-2020-8621 Open this link in a new tabHow to fix?
Upgrade Debian:unstable
bind9
to version 1:9.16.6-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream bind9
package and not the bind9
package as distributed by Debian
.
See How to fix?
for Debian:unstable
relevant fixed versions and status.
In BIND 9.14.0 -> 9.16.5, 9.17.0 -> 9.17.3, If a server is configured with both QNAME minimization and 'forward first' then an attacker who can send queries to it may be able to trigger the condition that will cause the server to crash. Servers that 'forward only' are not affected.
References
- https://security-tracker.debian.org/tracker/CVE-2020-8621
- https://kb.isc.org/docs/cve-2020-8621
- https://security.netapp.com/advisory/ntap-20200827-0003/
- https://www.synology.com/security/advisory/Synology_SA_20_19
- https://security.gentoo.org/glsa/202008-19
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html
- https://usn.ubuntu.com/4468-1/
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