CVE catalog
CVE-2021-25218
bind9: CVE-2021-25218
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 3.59% · Oct 25, 2026
In BIND 9.16.19, 9.17.16. Also, version 9.16.19-S1 of BIND Supported Preview Edition When a vulnerable version of named receives a query under the circumstances described above, the named process will terminate due to a failed assertion check. The vulnerability affects only BIND 9 releases 9.16.19, 9.17.16, and release 9.16.19-S1 of the BIND Supported Preview Edition.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | bind9 | sid | 1:9.20.30-1 | not affected |
| Debian | bind9 | forky | 1:9.20.30-1 | not affected |
| Debian | bind9 | trixie | 1:9.20.26-1~deb13u1 | not affected |
| Debian | bind9 | trixie-security | 1:9.20.30-1~deb13u1 | not affected |
| Debian | bind9 | bookworm | 1:9.18.49-1~deb12u1 | not affected |
| Debian | bind9 | bookworm-security | 1:9.18.49-1~deb12u3 | not affected |
| Alpine | bind | 3.11 | 9.16.20-r0 | fixed |
| Alpine | bind | 3.12 | 9.16.20-r0 | fixed |
| Alpine | bind | 3.13 | 9.16.20-r0 | fixed |
| Alpine | bind | 3.14 | 9.16.20-r0 | fixed |
| Alpine | bind | 3.15 | 9.16.20-r0 | fixed |
| Alpine | bind | 3.16 | 9.16.20-r0 | fixed |
| Alpine | bind | 3.17 | 9.16.20-r0 | fixed |
| Alpine | bind | 3.18 | 9.16.20-r0 | fixed |
| Alpine | bind | 3.19 | 9.16.20-r0 | fixed |
| Alpine | bind | 3.20 | 9.16.20-r0 | fixed |
| Alpine | bind | 3.21 | 9.16.20-r0 | fixed |
| Alpine | bind | 3.22 | 9.16.20-r0 | fixed |
| Alpine | bind | 3.23 | 9.16.20-r0 | fixed |
| Alpine | bind | 3.24 | 9.16.20-r0 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | bind9 | source | sid | Not affected | unimportant | Not reported | Not reported |
| Debian | bind9 | source | forky | Not affected | unimportant | Not reported | Not reported |
| Debian | bind9 | source | trixie | Not affected | unimportant | Not reported | Not reported |
| Debian | bind9 | source | bookworm | Not affected | unimportant | Not reported | Not reported |
| Alpine | bind | apk | 3.11 | 9.16.20-r0 | Not reported | ALPINE-CVE-2021-25218 | Not reported |
| Alpine | bind | apk | 3.12 | 9.16.20-r0 | Not reported | ALPINE-CVE-2021-25218 | Not reported |
| Alpine | bind | apk | 3.13 | 9.16.20-r0 | Not reported | ALPINE-CVE-2021-25218 | Not reported |
| Alpine | bind | apk | 3.14 | 9.16.20-r0 | Not reported | ALPINE-CVE-2021-25218 | Not reported |
| Alpine | bind | apk | 3.15 | 9.16.20-r0 | Not reported | ALPINE-CVE-2021-25218 | Not reported |
| Alpine | bind | apk | 3.16 | 9.16.20-r0 | Not reported | ALPINE-CVE-2021-25218 | Not reported |
| Alpine | bind | apk | 3.17 | 9.16.20-r0 | Not reported | ALPINE-CVE-2021-25218 | Not reported |
| Alpine | bind | apk | 3.18 | 9.16.20-r0 | Not reported | ALPINE-CVE-2021-25218 | Not reported |
| Alpine | bind | apk | 3.19 | 9.16.20-r0 | Not reported | ALPINE-CVE-2021-25218 | Not reported |
| Alpine | bind | apk | 3.20 | 9.16.20-r0 | Not reported | ALPINE-CVE-2021-25218 | Not reported |
| Alpine | bind | apk | 3.21 | 9.16.20-r0 | Not reported | ALPINE-CVE-2021-25218 | Not reported |
| Alpine | bind | apk | 3.22 | 9.16.20-r0 | Not reported | ALPINE-CVE-2021-25218 | Not reported |
| Alpine | bind | apk | 3.23 | 9.16.20-r0 | Not reported | ALPINE-CVE-2021-25218 | Not reported |
| Alpine | bind | apk | 3.24 | 9.16.20-r0 | Not reported | ALPINE-CVE-2021-25218 | Not reported |
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
[Debian 12 (Bookworm)]
- [bind9]Unknown
Details (6)
1:9.18.49-1~deb12u1· amd64 · bookwormNot affected
dsa · bind9 · debian · bookworm
1:9.18.49-1~deb12u1· arm64 · bookwormNot affected
dsa · bind9 · debian · bookworm
1:9.20.23-1~deb13u1~bpo12+1· amd64 · bookworm-backportsNot affected
dsa · bind9 · debian · bookworm
1:9.20.23-1~deb13u1~bpo12+1· arm64 · bookworm-backportsNot affected
dsa · bind9 · debian · bookworm
1:9.18.49-1~deb12u2· amd64 · bookworm-securityNot affected
dsa · bind9 · debian · bookworm
1:9.18.49-1~deb12u2· arm64 · bookworm-securityNot affected
dsa · bind9 · debian · bookworm
- [bind9-dev]Unknown
Source package: [bind9]
Details (6)
1:9.18.49-1~deb12u1· amd64 · bookwormNot affected
dsa · bind9 · debian · bookworm
1:9.18.49-1~deb12u1· arm64 · bookwormNot affected
dsa · bind9 · debian · bookworm
1:9.20.23-1~deb13u1~bpo12+1· amd64 · bookworm-backportsNot affected
dsa · bind9 · debian · bookworm
1:9.20.23-1~deb13u1~bpo12+1· arm64 · bookworm-backportsNot affected
dsa · bind9 · debian · bookworm
1:9.18.49-1~deb12u2· amd64 · bookworm-securityNot affected
dsa · bind9 · debian · bookworm
1:9.18.49-1~deb12u2· arm64 · bookworm-securityNot affected
dsa · bind9 · debian · bookworm
- [bind9-dnsutils]Unknown
Source package: [bind9]
Details (6)
1:9.18.49-1~deb12u1· amd64 · bookwormNot affected
dsa · bind9 · debian · bookworm
1:9.18.49-1~deb12u1· arm64 · bookwormNot affected
dsa · bind9 · debian · bookworm
1:9.20.23-1~deb13u1~bpo12+1· amd64 · bookworm-backportsNot affected
dsa · bind9 · debian · bookworm
1:9.20.23-1~deb13u1~bpo12+1· arm64 · bookworm-backportsNot affected
dsa · bind9 · debian · bookworm
1:9.18.49-1~deb12u2· amd64 · bookworm-securityNot affected
dsa · bind9 · debian · bookworm
1:9.18.49-1~deb12u2· arm64 · bookworm-securityNot affected
dsa · bind9 · debian · bookworm
- [bind9-doc]Unknown
Source package: [bind9]
Details (6)
1:9.18.49-1~deb12u1· all · bookwormNot affected
dsa · bind9 · debian · bookworm
1:9.18.49-1~deb12u1· all · bookwormNot affected
dsa · bind9 · debian · bookworm
1:9.20.23-1~deb13u1~bpo12+1· all · bookworm-backportsNot affected
dsa · bind9 · debian · bookworm
1:9.20.23-1~deb13u1~bpo12+1· all · bookworm-backportsNot affected
dsa · bind9 · debian · bookworm
1:9.18.49-1~deb12u2· all · bookworm-securityNot affected
dsa · bind9 · debian · bookworm
1:9.18.49-1~deb12u2· all · bookworm-securityNot affected
dsa · bind9 · debian · bookworm
- [bind9-host]Unknown
Source package: [bind9]
Details (6)
1:9.18.49-1~deb12u1· amd64 · bookwormNot affected
dsa · bind9 · debian · bookworm
1:9.18.49-1~deb12u1· arm64 · bookwormNot affected
dsa · bind9 · debian · bookworm
1:9.20.23-1~deb13u1~bpo12+1· amd64 · bookworm-backportsNot affected
dsa · bind9 · debian · bookworm
1:9.20.23-1~deb13u1~bpo12+1· arm64 · bookworm-backportsNot affected
dsa · bind9 · debian · bookworm
1:9.18.49-1~deb12u2· amd64 · bookworm-securityNot affected
dsa · bind9 · debian · bookworm
1:9.18.49-1~deb12u2· arm64 · bookworm-securityNot affected
dsa · bind9 · debian · bookworm
- [bind9-libs]Unknown
Source package: [bind9]
Details (6)
1:9.18.49-1~deb12u1· amd64 · bookwormNot affected
dsa · bind9 · debian · bookworm
1:9.18.49-1~deb12u1· arm64 · bookwormNot affected
dsa · bind9 · debian · bookworm
1:9.20.23-1~deb13u1~bpo12+1· amd64 · bookworm-backportsNot affected
dsa · bind9 · debian · bookworm
1:9.20.23-1~deb13u1~bpo12+1· arm64 · bookworm-backportsNot affected
dsa · bind9 · debian · bookworm
1:9.18.49-1~deb12u2· amd64 · bookworm-securityNot affected
dsa · bind9 · debian · bookworm
1:9.18.49-1~deb12u2· arm64 · bookworm-securityNot affected
dsa · bind9 · debian · bookworm
- [bind9-utils]Unknown
Source package: [bind9]
Details (6)
1:9.18.49-1~deb12u1· amd64 · bookwormNot affected
dsa · bind9 · debian · bookworm
1:9.18.49-1~deb12u1· arm64 · bookwormNot affected
dsa · bind9 · debian · bookworm
1:9.20.23-1~deb13u1~bpo12+1· amd64 · bookworm-backportsNot affected
dsa · bind9 · debian · bookworm
1:9.20.23-1~deb13u1~bpo12+1· arm64 · bookworm-backportsNot affected
dsa · bind9 · debian · bookworm
1:9.18.49-1~deb12u2· amd64 · bookworm-securityNot affected
dsa · bind9 · debian · bookworm
1:9.18.49-1~deb12u2· arm64 · bookworm-securityNot affected
dsa · bind9 · debian · bookworm
- [bind9utils]Unknown
Source package: [bind9]
Details (4)
1:9.18.49-1~deb12u1· all · bookwormNot affected
dsa · bind9 · debian · bookworm
1:9.18.49-1~deb12u1· all · bookwormNot affected
dsa · bind9 · debian · bookworm
1:9.18.49-1~deb12u2· all · bookworm-securityNot affected
dsa · bind9 · debian · bookworm
1:9.18.49-1~deb12u2· all · bookworm-securityNot affected
dsa · bind9 · debian · bookworm
- [dnsutils]Unknown
Source package: [bind9]
Details (4)
1:9.18.49-1~deb12u1· all · bookwormNot affected
dsa · bind9 · debian · bookworm
1:9.18.49-1~deb12u1· all · bookwormNot affected
dsa · bind9 · debian · bookworm
1:9.18.49-1~deb12u2· all · bookworm-securityNot affected
dsa · bind9 · debian · bookworm
1:9.18.49-1~deb12u2· all · bookworm-securityNot affected
dsa · bind9 · debian · bookworm
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2024_10650-1.json]
- [https://osv.dev/vulnerability/ALPINE-CVE-2021-25218]
- [https://security-tracker.debian.org/tracker/CVE-2021-25218]
[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]