CVE-2019-5885
High
Description
Matrix Synapse before 0.34.0.1, when the macaroon_secret_key authentication parameter is not set, uses a predictable value to derive a secret key and other secrets which could allow remote attackers to impersonate users.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Matrix Synapse
PublishedMar 21, 2019
First seenMar 21, 2019
How to fix
Update
- matrix synapse0.34.0.1 or later
- matrix-synapse0.34.0.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| matrix synapse | v < 0.34.0.1 | 0.34.0.1 |
| fedoraproject fedora | 28, 29 | — |
| matrix-synapsePyPI | v < 0.34.0.1 | 0.34.0.1 |
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