CVE-2018-16515
Published: 18 September 2018
Matrix Synapse before 0.33.3.1 allows remote attackers to spoof events and possibly have unspecified other impacts by leveraging improper transaction and event signature validation.
Notes
| Author | Note |
|---|---|
| msalvatore | This CVE covers a few problems. To exploit the first, you must be "the administrator of any server in a room". To exploit the second two requires a "malicious server". |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
matrix-synapse Launchpad, Ubuntu, Debian |
groovy |
Not vulnerable
(0.99.2-1)
|
| hirsute |
Not vulnerable
(0.99.2-1)
|
|
| impish |
Not vulnerable
(0.99.2-1)
|
|
| jammy |
Not vulnerable
(0.99.2-1)
|
|
| kinetic |
Not vulnerable
(0.99.2-1)
|
|
| bionic |
Released
(0.24.0+dfsg-1ubuntu0.1~esm1)
Available with Ubuntu Pro |
|
| cosmic |
Ignored
(end of life)
|
|
| disco |
Not vulnerable
(0.99.2-1)
|
|
| eoan |
Not vulnerable
(0.99.2-1)
|
|
| focal |
Not vulnerable
(0.99.2-1)
|
|
| lunar |
Not vulnerable
(0.99.2-1)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(0.33.3.1-1)
|
|
| xenial |
Does not exist
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 8.8 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | Low |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-16515
- https://matrix.org/blog/2018/09/05/pre-disclosure-upcoming-critical-security-fix-for-synapse/
- https://github.com/matrix-org/synapse/issues/3796
- https://matrix.org/blog/2018/09/06/critical-security-update-synapse-0-33-3-1
- https://ubuntu.com/security/notices/USN-6076-1
- NVD
- Launchpad
- Debian