CVE-2021-25214
Published: 28 April 2021
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.
Notes
| Author | Note |
|---|---|
| mdeslaur | affects 9.8.5+ |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
bind9 Launchpad, Ubuntu, Debian |
impish |
Released
(1:9.16.8-1ubuntu3.1)
|
| jammy |
Released
(1:9.16.8-1ubuntu3.1)
|
|
| kinetic |
Released
(1:9.16.8-1ubuntu3.1)
|
|
| lunar |
Released
(1:9.16.8-1ubuntu3.1)
|
|
| upstream |
Released
(9.11.30,9.16.14,9.17.12)
|
|
| trusty |
Needed
|
|
| bionic |
Released
(1:9.11.3+dfsg-1ubuntu1.15)
|
|
| focal |
Released
(1:9.16.1-0ubuntu2.8)
|
|
| groovy |
Released
(1:9.16.6-3ubuntu1.2)
|
|
| hirsute |
Released
(1:9.16.8-1ubuntu3.1)
|
|
| xenial |
Released
(1:9.10.3.dfsg.P4-8ubuntu1.19)
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 6.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | Low |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |