CVE-2021-25214

Publication date 28 April 2021

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

6.5 · Medium

Score breakdown

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.

Read the notes from the security team

Status

Package Ubuntu Release Status
bind9 24.10 oracular
Fixed 1:9.16.8-1ubuntu3.1
24.04 LTS noble
Fixed 1:9.16.8-1ubuntu3.1
23.10 mantic
Fixed 1:9.16.8-1ubuntu3.1
23.04 lunar
Fixed 1:9.16.8-1ubuntu3.1
22.10 kinetic
Fixed 1:9.16.8-1ubuntu3.1
22.04 LTS jammy
Fixed 1:9.16.8-1ubuntu3.1
21.10 impish
Fixed 1:9.16.8-1ubuntu3.1
21.04 hirsute
Fixed 1:9.16.8-1ubuntu3.1
20.10 groovy
Fixed 1:9.16.6-3ubuntu1.2
20.04 LTS focal
Fixed 1:9.16.1-0ubuntu2.8
18.04 LTS bionic
Fixed 1:9.11.3+dfsg-1ubuntu1.15
16.04 LTS xenial
Fixed 1:9.10.3.dfsg.P4-8ubuntu1.19
14.04 LTS trusty Ignored end of ESM support, was needed

Notes

mdeslaur

affects 9.8.5+

Severity score breakdown

Parameter Value
Base score 6.5 · Medium
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

References

Related Ubuntu Security Notices (USN)

Other references