vulnerability
Ubuntu: USN-6076-1 (CVE-2019-11842): Synapse vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:N/AC:L/Au:N/C:P/I:N/A:N) | May 9, 2019 | May 17, 2023 | Aug 18, 2025 |
Severity
5
CVSS
(AV:N/AC:L/Au:N/C:P/I:N/A:N)
Published
May 9, 2019
Added
May 17, 2023
Modified
Aug 18, 2025
Description
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.
Solution
ubuntu-pro-upgrade-matrix-synapse
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