CVE-2019-18835
Published: 8 November 2019
Matrix Synapse before 1.5.0 mishandles signature checking on some federation APIs. Events sent over /send_join, /send_leave, and /invite may not be correctly signed, or may not come from the expected servers.
Priority
Status
Package | Release | Status |
---|---|---|
matrix-synapse Launchpad, Ubuntu, Debian |
focal |
Not vulnerable
(1.11.0-1)
|
groovy |
Not vulnerable
|
|
jammy |
Not vulnerable
|
|
kinetic |
Not vulnerable
|
|
bionic |
Released
(0.24.0+dfsg-1ubuntu0.1~esm1)
Available with Ubuntu Pro |
|
hirsute |
Not vulnerable
|
|
impish |
Not vulnerable
|
|
lunar |
Not vulnerable
|
|
trusty |
Does not exist
|
|
upstream |
Released
(1.5.0-1)
|
|
xenial |
Does not exist
|
|
Patches: upstream: https://github.com/matrix-org/synapse/pull/6262 |
Severity score breakdown
Parameter | Value |
---|---|
Base score | 9.8 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | High |
Availability impact | High |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |