High severity7.5NVD Advisory· Published Apr 29, 2021· Updated Jun 17, 2026
CVE-2021-25215
CVE-2021-25215
Description
In BIND 9.0.0 -> 9.11.29, 9.12.0 -> 9.16.13, and versions BIND 9.9.3-S1 -> 9.11.29-S1 and 9.16.8-S1 -> 9.16.13-S1 of BIND Supported Preview Edition, as well as release versions 9.17.0 -> 9.17.11 of the BIND 9.17 development branch, when a vulnerable version of named receives a query for a record triggering the flaw described above, the named process will terminate due to a failed assertion check. The vulnerability affects all currently maintained BIND 9 branches (9.11, 9.11-S, 9.16, 9.16-S, 9.17) as well as all other versions of BIND 9.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
549.0.0 -> 9.11.29, 9.12.0 -> 9.16.13, 9.9.3-S1 -> 9.11.29-S1, 9.16.8-S1 -> 9.16.13-S1, 9.17.0 -> 9.17.11+ 1 more
- (no CPE)range: 9.0.0 -> 9.11.29, 9.12.0 -> 9.16.13, 9.9.3-S1 -> 9.11.29-S1, 9.16.8-S1 -> 9.16.13-S1, 9.17.0 -> 9.17.11
- (no CPE)range: Open Source Branches 9.0 through 9.11 9.0.0 through versions before 9.11.30
- osv-coords52 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%2015.2pkg:rpm/opensuse/bind&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/bind&distro=openSUSE%20Tumbleweedpkg:rpm/suse/bind&distro=HPE%20Helion%20OpenStack%208pkg:rpm/suse/bind&distro=SUSE%20Enterprise%20Storage%206pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-ESPOSpkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSSpkg: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%20SP2pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP3pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP2pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP3pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCLpkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-LTSSpkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4-LTSSpkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-BCLpkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSSpkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSSpkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5pkg:rpm/suse/bind&distro=SUSE%20Manager%20Proxy%204.0pkg:rpm/suse/bind&distro=SUSE%20Manager%20Retail%20Branch%20Server%204.0pkg:rpm/suse/bind&distro=SUSE%20Manager%20Server%204.0pkg:rpm/suse/bind&distro=SUSE%20OpenStack%20Cloud%208pkg:rpm/suse/bind&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/bind&distro=SUSE%20OpenStack%20Cloud%20Crowbar%208pkg:rpm/suse/bind&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209
< 0+ 51 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-lp152.14.19.1
- (no CPE)range: < 9.16.6-22.7.1
- (no CPE)range: < 9.16.20-1.4
- (no CPE)range: < 9.9.9P1-63.25.1
- (no CPE)range: < 9.16.6-12.49.1
- (no CPE)range: < 9.16.6-12.49.1
- (no CPE)range: < 9.16.6-12.49.1
- (no CPE)range: < 9.16.6-12.49.1
- (no CPE)range: < 9.16.6-12.49.1
- (no CPE)range: < 9.16.6-12.49.1
- (no CPE)range: < 9.16.6-22.7.1
- (no CPE)range: < 9.16.6-12.49.1
- (no CPE)range: < 9.16.6-22.7.1
- (no CPE)range: < 9.9.6P1-0.51.26.1
- (no CPE)range: < 9.9.6P1-0.51.26.1
- (no CPE)range: < 9.9.9P1-63.25.1
- (no CPE)range: < 9.9.9P1-63.25.1
- (no CPE)range: < 9.9.9P1-63.25.1
- (no CPE)range: < 9.11.22-3.34.1
- (no CPE)range: < 9.11.22-3.34.1
- (no CPE)range: < 9.16.6-12.49.1
- (no CPE)range: < 9.16.6-12.49.1
- (no CPE)range: < 9.16.6-12.49.1
- (no CPE)range: < 9.9.9P1-63.25.1
- (no CPE)range: < 9.11.22-3.34.1
- (no CPE)range: < 9.11.22-3.34.1
- (no CPE)range: < 9.16.6-12.49.1
- (no CPE)range: < 9.16.6-12.49.1
- (no CPE)range: < 9.11.22-3.34.1
- (no CPE)range: < 9.16.6-12.49.1
- (no CPE)range: < 9.16.6-12.49.1
- (no CPE)range: < 9.16.6-12.49.1
- (no CPE)range: < 9.9.9P1-63.25.1
- (no CPE)range: < 9.11.22-3.34.1
- (no CPE)range: < 9.9.9P1-63.25.1
- (no CPE)range: < 9.11.22-3.34.1
Patches
Vulnerability mechanics
References
12- cert-portal.siemens.com/productcert/pdf/ssa-389290.pdfnvdPatchThird Party Advisory
- www.oracle.com/security-alerts/cpuoct2021.htmlnvdPatchThird Party Advisory
- www.openwall.com/lists/oss-security/2021/04/29/1nvdMailing ListThird Party Advisory
- www.openwall.com/lists/oss-security/2021/04/29/2nvdMailing ListThird Party Advisory
- www.openwall.com/lists/oss-security/2021/04/29/3nvdMailing ListThird Party Advisory
- www.openwall.com/lists/oss-security/2021/04/29/4nvdMailing ListThird Party Advisory
- kb.isc.org/v1/docs/cve-2021-25215nvdVendor Advisory
- lists.debian.org/debian-lts-announce/2021/05/msg00001.htmlnvdMailing ListThird Party Advisory
- security.netapp.com/advisory/ntap-20210521-0006/nvdThird Party Advisory
- www.debian.org/security/2021/dsa-4909nvdThird Party Advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VEC2XG4Q2ODTN2C4CGXEIXU3EUTBMK7L/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZDSRPCJQ7MZC6CENH5PO3VQOFI7VSWBE/nvd
News mentions
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