High severity7.5NVD Advisory· Published Aug 21, 2020· Updated Jun 17, 2026
CVE-2020-8621
CVE-2020-8621
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
50- cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*+ 2 more
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
- osv-coords38 versionspkg:apk/chainguard/bindpkg:apk/chainguard/bind-devpkg:apk/chainguard/bind-dnssec-rootpkg:apk/chainguard/bind-dnssec-toolspkg:apk/chainguard/bind-docpkg:apk/chainguard/bind-libspkg:apk/chainguard/bind-pluginspkg:apk/chainguard/bind-toolspkg:apk/wolfi/bindpkg:apk/wolfi/bind-devpkg:apk/wolfi/bind-dnssec-rootpkg:apk/wolfi/bind-dnssec-toolspkg:apk/wolfi/bind-docpkg:apk/wolfi/bind-libspkg:apk/wolfi/bind-pluginspkg:apk/wolfi/bind-toolspkg:rpm/opensuse/bind&distro=openSUSE%20Leap%2015.1pkg:rpm/opensuse/bind&distro=openSUSE%20Leap%2015.2pkg:rpm/opensuse/bind&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/libuv&distro=openSUSE%20Leap%2015.1pkg:rpm/opensuse/libuv&distro=openSUSE%20Leap%2015.2pkg:rpm/opensuse/sysuser-tools&distro=openSUSE%20Leap%2015.1pkg:rpm/opensuse/sysuser-tools&distro=openSUSE%20Leap%2015.2pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOSpkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSSpkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP1pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP1pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP2pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSSpkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015pkg:rpm/suse/sysuser-tools&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOSpkg:rpm/suse/sysuser-tools&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSSpkg:rpm/suse/sysuser-tools&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP1pkg:rpm/suse/sysuser-tools&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2pkg:rpm/suse/sysuser-tools&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP2pkg:rpm/suse/sysuser-tools&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSSpkg:rpm/suse/sysuser-tools&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015
< 0+ 37 more
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 9.16.6-lp151.11.9.1
- (no CPE)range: < 9.16.6-lp152.14.3.1
- (no CPE)range: < 9.16.20-1.4
- (no CPE)range: < 1.18.0-lp151.3.3.1
- (no CPE)range: < 1.18.0-lp152.4.3.1
- (no CPE)range: < 2.0-lp151.4.3.1
- (no CPE)range: < 2.0-lp152.5.3.1
- (no CPE)range: < 9.16.6-12.32.1
- (no CPE)range: < 9.16.6-12.32.1
- (no CPE)range: < 9.16.6-12.32.1
- (no CPE)range: < 9.16.6-12.32.1
- (no CPE)range: < 9.16.6-12.32.1
- (no CPE)range: < 9.16.6-12.32.1
- (no CPE)range: < 9.16.6-12.32.1
- (no CPE)range: < 9.16.6-12.32.1
- (no CPE)range: < 2.0-4.2.8
- (no CPE)range: < 2.0-4.2.8
- (no CPE)range: < 2.0-4.2.8
- (no CPE)range: < 2.0-4.2.8
- (no CPE)range: < 2.0-4.2.8
- (no CPE)range: < 2.0-4.2.8
- (no CPE)range: < 2.0-4.2.8
Patches
Vulnerability mechanics
References
7- lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.htmlnvdMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.htmlnvdMailing ListThird Party Advisory
- kb.isc.org/docs/cve-2020-8621nvdVendor Advisory
- security.gentoo.org/glsa/202008-19nvdThird Party Advisory
- security.netapp.com/advisory/ntap-20200827-0003/nvdThird Party Advisory
- usn.ubuntu.com/4468-1/nvdThird Party Advisory
- www.synology.com/security/advisory/Synology_SA_20_19nvdThird Party Advisory
News mentions
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