CVE-2019-11842
Published: 9 May 2019
An issue was discovered in Matrix Sydent before 1.0.3 and Synapse before 0.99.3.1. Random number generation is mishandled, which makes it easier for attackers to predict a Sydent authentication token or a Synapse random ID.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
matrix-synapse Launchpad, Ubuntu, Debian |
bionic |
Released
(0.24.0+dfsg-1ubuntu0.1~esm1)
Available with Ubuntu Pro |
| groovy |
Not vulnerable
(0.99.2-5)
|
|
| hirsute |
Not vulnerable
(0.99.2-5)
|
|
| impish |
Not vulnerable
(0.99.2-5)
|
|
| jammy |
Not vulnerable
(0.99.2-5)
|
|
| cosmic |
Ignored
(end of life)
|
|
| disco |
Ignored
(end of life)
|
|
| eoan |
Not vulnerable
(0.99.2-5)
|
|
| focal |
Not vulnerable
(0.99.2-5)
|
|
| kinetic |
Not vulnerable
(0.99.2-5)
|
|
| lunar |
Not vulnerable
(0.99.2-5)
|
|
| upstream |
Released
(0.99.2-5)
|
|
| xenial |
Does not exist
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | None |
| Availability impact | None |
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |