CVE-2019-10191
Published: 10 July 2019
A vulnerability was discovered in DNS resolver of knot resolver before version 4.1.0 which allows remote attackers to downgrade DNSSEC-secure domains to DNSSEC-insecure state, opening possibility of domain hijack using attacks against insecure DNS protocol.
Notes
Author | Note |
---|---|
alexmurray | According to the upstream advisory all version <= 4.0.0 are affected |
Priority
Status
Package | Release | Status |
---|---|---|
knot-resolver Launchpad, Ubuntu, Debian |
bionic |
Needed
|
cosmic |
Ignored
(end of life)
|
|
disco |
Ignored
(end of life)
|
|
eoan |
Ignored
(end of life)
|
|
focal |
Needed
|
|
groovy |
Ignored
(end of life)
|
|
hirsute |
Ignored
(end of life)
|
|
impish |
Ignored
(end of life)
|
|
jammy |
Not vulnerable
(5.4.4-1)
|
|
kinetic |
Not vulnerable
(5.5.1-5)
|
|
lunar |
Not vulnerable
(5.6.0-1)
|
|
mantic |
Not vulnerable
(5.6.0-1)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.1.0)
|
|
xenial |
Needed
|
|
Patches: upstream: https://gitlab.nic.cz/knot/knot-resolver/-/merge_requests/839/commits |
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 | High |
Availability impact | None |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |