# matrix-synapse 0.24.0+dfsg-1ubuntu0.1~esm1: matrix-synapse 0.24.0+dfsg-1ubuntu0.1~esm1 for Ubuntu 18.04.6 LTS (bionic)

matrix-synapse 0.24.0+dfsg-1ubuntu0.1~esm1, released November 7, 2019, fixes 7 CVEs in matrix-synapse. None of them is reported as exploited. Patch Radar priority: Routine. The product is no longer supported.

- Web page: https://patchblox.com/security/fix/linux/ubuntu-bionic-matrix-synapse-0.24.0-dfsg-1ubuntu0.1-esm1
- Platform: Linux
- Released: Nov 7, 2019
- Priority: Routine (Closes 7 CVEs, none high severity)
- CVEs: 7, exploited: 0, on CISA KEV: 0

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [matrix-synapse](https://patchblox.com/security/data/product/linux/matrix-synapse.md) | Ubuntu 18.04.6 LTS (bionic) | 0.24.0+dfsg-1ubuntu0.1~esm1 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2019-5885](https://patchblox.com/security/data/cve/CVE-2019-5885.md) | Routine | matrix-synapse: Matrix Synapse before 0.34.0.1, when the macaroon_secret_key authentication parameter is not set, uses a predictable... | n/a | 0.0249 |  |
| [CVE-2018-12423](https://patchblox.com/security/data/cve/CVE-2018-12423.md) | Routine | matrix-synapse: In Synapse before 0.31.2, unauthorised users can hijack rooms when there is no m.room.power_levels event in force. | n/a | 0.0181 |  |
| [CVE-2019-11842](https://patchblox.com/security/data/cve/CVE-2019-11842.md) | Routine | matrix-synapse: An issue was discovered in Matrix Sydent before 1.0.3 and Synapse before 0.99.3.1 | n/a | 0.0180 |  |
| [CVE-2018-12291](https://patchblox.com/security/data/cve/CVE-2018-12291.md) | Routine | matrix-synapse: The on_get_missing_events function in handlers/federation.py in Matrix Synapse before 0.31.1 has a security bug in th... | n/a | 0.0179 |  |
| [CVE-2018-16515](https://patchblox.com/security/data/cve/CVE-2018-16515.md) | Routine | matrix-synapse: Matrix Synapse before 0.33.3.1 allows remote attackers to spoof events and possibly have unspecified other impacts by... | n/a | 0.0154 |  |
| [CVE-2018-10657](https://patchblox.com/security/data/cve/CVE-2018-10657.md) | Routine | matrix-synapse: Matrix Synapse before 0.28.1 is prone to a denial of service flaw where malicious events injected with depth = 2^63 -... | n/a | 0.0149 |  |
| [CVE-2019-18835](https://patchblox.com/security/data/cve/CVE-2019-18835.md) | Routine | matrix-synapse: Matrix Synapse before 1.5.0 mishandles signature checking on some federation APIs | n/a | 0.0086 |  |

---

Data as of 2026-11-12T19:57:06Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.