CVE-2021-25215
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2021
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
An assertion check can fail while answering queries for DNAME records that require the DNAME to be processed to resolve itself
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
BIND9
- Vendor
- ISC
- Product
- BIND9
- Platforms
- Unknown
- Default status
Unknown
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| Open Source Branches 9.0 through 9.11 9.0.0 through versions before 9.11.30 | affected | Unavailable | Unavailable | Unavailable | None listed |
| Open Source Branches 9.12 through 9.16 9.12.0 through versions before 9.16.14 | affected | Unavailable | Unavailable | Unavailable | None listed |
| Supported Preview Branches 9.9-S through 9.11-S 9.9.3-S1 through versions before 9.11.30-S1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| Supported Preview Branch 9.16-S 9.16.8-S1 through versions before 9.16.14-S1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| Development Branch 9.17 9.17.0 through versiosn before 9.17.12 | affected | Unavailable | Unavailable | Unavailable | None listed |