High severity7.5NVD Advisory· Published Apr 29, 2021· Updated Jun 17, 2026

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

osv-coords52 versions
pkg:apk/wolfi/bind pkg:apk/chainguard/bind-dnssec-tools pkg:apk/wolfi/bind-dnssec-tools pkg:apk/chainguard/bind-doc pkg:apk/wolfi/bind-plugins pkg:apk/wolfi/bind-tools pkg:rpm/suse/bind&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209 pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4 pkg:rpm/suse/bind&distro=SUSE%20OpenStack%20Cloud%208 pkg:rpm/suse/bind&distro=SUSE%20OpenStack%20Cloud%20Crowbar%208 pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCL pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2 pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-BCL pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1 pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSS pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP3 pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP3 pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-LTSS pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOS pkg:rpm/suse/bind&distro=SUSE%20Manager%20Server%204.0 pkg:rpm/opensuse/bind&distro=openSUSE%20Tumbleweed pkg:apk/chainguard/bind pkg:apk/chainguard/bind-dev pkg:apk/wolfi/bind-dev pkg:apk/chainguard/bind-dnssec-root pkg:apk/wolfi/bind-dnssec-root pkg:apk/wolfi/bind-doc pkg:apk/wolfi/bind-libs pkg:apk/chainguard/bind-plugins pkg:apk/chainguard/bind-tools pkg:apk/chainguard/bind-libs pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5 pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015 pkg:rpm/suse/bind&distro=SUSE%20Manager%20Proxy%204.0 pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5 pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3 pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCL pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-ESPOS pkg:rpm/suse/bind&distro=SUSE%20Enterprise%20Storage%206 pkg:rpm/suse/bind&distro=SUSE%20OpenStack%20Cloud%209 pkg:rpm/suse/bind&distro=HPE%20Helion%20OpenStack%208 pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSS pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4-LTSS pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5 pkg:rpm/opensuse/bind&distro=openSUSE%20Leap%2015.2 pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP2 pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSS pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSS pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSS pkg:rpm/suse/bind&distro=SUSE%20Manager%20Retail%20Branch%20Server%204.0 pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3 pkg:rpm/opensuse/bind&distro=openSUSE%20Leap%2015.3
< 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: < 9.11.22-3.34.1
- (no CPE)range: < 9.11.22-3.34.1
- (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: < 9.16.6-12.49.1
- (no CPE)range: < 9.16.6-12.49.1
- (no CPE)range: < 9.16.6-12.49.1
- (no CPE)range: < 9.9.6P1-0.51.26.1
- (no CPE)range: < 9.16.6-22.7.1
- (no CPE)range: < 9.16.6-22.7.1
- (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: < 9.16.20-1.4
- (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: < 9.11.22-3.34.1
- (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: < 9.9.9P1-63.25.1
- (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: < 9.11.22-3.34.1
- (no CPE)range: < 9.9.9P1-63.25.1
- (no CPE)range: < 9.16.6-12.49.1
- (no CPE)range: < 9.11.22-3.34.1
- (no CPE)range: < 9.11.22-3.34.1
- (no CPE)range: < 9.16.6-lp152.14.19.1
- (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: < 9.9.6P1-0.51.26.1
- (no CPE)range: < 9.16.6-22.7.1
Isc/Bindllm-fuzzy22 versions
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+ 21 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
- cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*range: >=9.0.0,<9.11.31
- cpe:2.3:a:isc:bind:9.9.3:s1:*:*:supported_preview:*:*:*
- cpe:2.3:a:isc:bind:9.9.12:s1:*:*:supported_preview:*:*:*
- cpe:2.3:a:isc:bind:9.9.13:s1:*:*:supported_preview:*:*:*
- cpe:2.3:a:isc:bind:9.10.5:s1:*:*:supported_preview:*:*:*
- cpe:2.3:a:isc:bind:9.10.7:s1:*:*:supported_preview:*:*:*
- cpe:2.3:a:isc:bind:9.11.3:s1:*:*:supported_preview:*:*:*
- cpe:2.3:a:isc:bind:9.11.5:s3:*:*:supported_preview:*:*:*
- cpe:2.3:a:isc:bind:9.11.5:s5:*:*:supported_preview:*:*:*
- cpe:2.3:a:isc:bind:9.11.5:s6:*:*:supported_preview:*:*:*
- cpe:2.3:a:isc:bind:9.11.6:s1:*:*:supported_preview:*:*:*
- cpe:2.3:a:isc:bind:9.11.7:s1:*:*:supported_preview:*:*:*
- cpe:2.3:a:isc:bind:9.11.8:s1:*:*:supported_preview:*:*:*
- cpe:2.3:a:isc:bind:9.11.12:s1:*:*:supported_preview:*:*:*
- cpe:2.3:a:isc:bind:9.11.21:s1:*:*:supported_preview:*:*:*
- cpe:2.3:a:isc:bind:9.11.27:s1:*:*:supported_preview:*:*:*
- cpe:2.3:a:isc:bind:9.11.29:s1:*:*:supported_preview:*:*:*
- cpe:2.3:a:isc:bind:9.16.8:s1:*:*:supported_preview:*:*:*
- cpe:2.3:a:isc:bind:9.16.11:s1:*:*:supported_preview:*:*:*
- cpe:2.3:a:isc:bind:9.16.13:s1:*:*:supported_preview:*:*:*
Debian/linux2 versions
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
Fedoraproject/Fedora2 versions
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
NetApp/Active Iq Unified Manager
cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:*
NetApp/Cloud Backup
cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*
NetApp/H300s Firmware
cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:*
NetApp/H500s Firmware
cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:*
NetApp/H700s Firmware
cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:*
NetApp/H300e Firmware
cpe:2.3:o:netapp:h300e_firmware:-:*:*:*:*:*:*:*
NetApp/H500e Firmware
cpe:2.3:o:netapp:h500e_firmware:-:*:*:*:*:*:*:*
NetApp/H700e Firmware
cpe:2.3:o:netapp:h700e_firmware:-:*:*:*:*:*:*:*
NetApp/H410s Firmware
cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:*
NetApp/A250 Firmware
cpe:2.3:o:netapp:a250_firmware:-:*:*:*:*:*:*:*
NetApp/500f Firmware
cpe:2.3:o:netapp:500f_firmware:-:*:*:*:*:*:*:*
Oracle Corporation/Tekelec Platform Distribution
cpe:2.3:a:oracle:tekelec_platform_distribution:*:*:*:*:*:*:*:*
Range: >=7.4.0,<=7.7.1
Siemens Foundation/Sinec Infrastructure Network Services
cpe:2.3:a:siemens:sinec_infrastructure_network_services:*:*:*:*:*:*:*:*
Range: <1.0.1.1

Patches

Vulnerability mechanics

References

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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cvss	0.488
epss	0.009
exploit	0.000
kev	0.000
patch	0.000
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