CVE-2021-25214
bind9 - security update
6.5
MEDIUM
CVSS 3.1
EPSS 5.9%
Description
In BIND 9.8.5 -> 9.8.8, 9.9.3 -> 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 9 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 malformed IXFR triggering the flaw described above, the named process will terminate due to a failed assertion the next time the transferred secondary zone is refreshed.
How to fix CVE-2021-25214
To remediate CVE-2021-25214, upgrade the affected package to a fixed version below.
- —upgrade to 9.16.15-r0 or later
Is CVE-2021-25214 being exploited?
Moderate — EPSS is 5.9%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (1)
- >= 9.8.5, < 9.16.15-r0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |