CVE-2019-6467
Published: 24 April 2019
A programming error in the nxdomain-redirect feature can cause an assertion failure in query.c if the alternate namespace used by nxdomain-redirect is a descendant of a zone that is served locally. The most likely scenario where this might occur is if the server, in addition to performing NXDOMAIN redirection for recursive clients, is also serving a local copy of the root zone or using mirroring to provide the root zone, although other configurations are also possible. Versions affected: BIND 9.12.0-> 9.12.4, 9.14.0. Also affects all releases in the 9.13 development branch.
Notes
| Author | Note |
|---|---|
| mdeslaur | only affects 9.12 and later |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
bind9 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(1:9.11.3+dfsg-1ubuntu1.5)
|
| cosmic |
Not vulnerable
(1:9.11.4+dfsg-3ubuntu5.1)
|
|
| disco |
Not vulnerable
(1:9.11.5.P1+dfsg-1ubuntu2)
|
|
| trusty |
Not vulnerable
(1:9.9.5.dfsg-3ubuntu0.19)
|
|
| upstream |
Needs triage
|
|
| xenial |
Not vulnerable
(1:9.10.3.dfsg.P4-8ubuntu1.12)
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |