CVE-2020-12662
Published: 19 May 2020
Unbound before 1.10.1 has Insufficient Control of Network Message Volume, aka an "NXNSAttack" issue. This is triggered by random subdomains in the NSDNAME in NS records.
Notes
| Author | Note |
|---|---|
| mdeslaur | intrusive backport to xenial |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
unbound Launchpad, Ubuntu, Debian |
upstream |
Released
(1.10.1-1)
|
| trusty |
Needed
|
|
| bionic |
Released
(1.6.7-1ubuntu2.3)
|
|
| eoan |
Released
(1.9.0-2ubuntu1.1)
|
|
| xenial |
Needed
|
|
| impish |
Not vulnerable
(1.10.1-1)
|
|
| hirsute |
Not vulnerable
(1.10.1-1)
|
|
| focal |
Released
(1.9.4-2ubuntu1.1)
|
|
| groovy |
Not vulnerable
(1.10.1-1)
|
|
| jammy |
Not vulnerable
(1.10.1-1)
|
|
| kinetic |
Not vulnerable
(1.10.1-1)
|
|
| lunar |
Not vulnerable
(1.10.1-1)
|
|
|
Patches: upstream: https://nlnetlabs.nl/downloads/unbound/CVE-2020-12662_2020-12663.txt |
||
| Binaries built from this source package are in Universe and so are supported by the community. | ||
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 |