GHSA-VMCC-4P4X-X7WG Matrix Synapse DoS

Matrix Synapse before 0.28.1 is prone to a denial of service flaw where malicious events injected with depth = 263 - 1 render rooms unusable, related to federation/federationbase.py and handlers/message.py, as exploited in the wild in April 2018...

Matrix Synapse Improper Signature Validation

Matrix Synapse before 0.33.3.1 and 0.33.2.1 allows remote attackers to spoof events and possibly have unspecified other impacts by leveraging improper transaction and event signature validation...

Matrix Synapse Security Filtering Flaw

The ongetmissingevents function in handlers/federation.py in Matrix Synapse before 0.31.1 has a security bug in the getmissingevents federation API where event visibility rules were not applied correctly...

GHSA-V8WM-G9F2-XJV4 Matrix Synapse Security Filtering Flaw

The ongetmissingevents function in handlers/federation.py in Matrix Synapse before 0.31.1 has a security bug in the getmissingevents federation API where event visibility rules were not applied correctly...

raiden (>=0.100.2 <=0.100.3rc1) potentially affected by CVE-2019-5885 via matrix-synapse (=0.33.9)

matrix-synapse PYPI version =0.33.9 is affected by a known vulnerability. The following packages have a transitive dependency on matrix-synapse and may be impacted: - raiden =0.100.2, =0.100.3rc1 Source cves: CVE-2019-5885 Source advisory: OSV:GHSA-JRQM-V8CV-53WW...

Matrix Synapse Predictable Secret Key

Matrix Synapse before 0.34.0.1, when the macaroonsecretkey 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...

GHSA-JRQM-V8CV-53WW Matrix Synapse Predictable Secret Key

Matrix Synapse before 0.34.0.1, when the macaroonsecretkey 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...

Fedora: Security Advisory for matrix-synapse (FEDORA-2021-2f9dcdbace)

The remote host is missing an update for the Copyright C 2021 Greenbone Networks GmbH Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-or-later This program is free software; you can...

Fedora: Security Advisory for matrix-synapse (FEDORA-2021-9758549fce)

The remote host is missing an update for the Copyright C 2021 Greenbone Networks GmbH Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-or-later This program is free software; you can...

Path Traversal

matrix-synapse is vulnerable to path traversal. An attacker can download files from a remote server into an arbitrary directory when a media repository is enabled, potentially outside of the configured directory...

Path traversal in Matrix Synapse

Impact Synapse instances with the media repository enabled can be tricked into downloading a file from a remote server into an arbitrary directory, potentially outside the media store directory. The last two directories and file name of the path are chosen randomly by Synapse and cannot be...

GHSA-3HFW-X7GX-437C Path traversal in Matrix Synapse

Impact Synapse instances with the media repository enabled can be tricked into downloading a file from a remote server into an arbitrary directory, potentially outside the media store directory. The last two directories and file name of the path are chosen randomly by Synapse and cannot be...

CVE-2021-41281 Path traversal in Matrix Synapse

Synapse is a package for Matrix homeservers written in Python 3/Twisted. Prior to version 1.47.1, Synapse instances with the media repository enabled can be tricked into downloading a file from a remote server into an arbitrary directory. No authentication is required for the affected endpoint. T...

Fedora: Security Advisory for matrix-synapse (FEDORA-2021-f12fdca1bf)

The remote host is missing an update for the Copyright C 2021 Greenbone Networks GmbH Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-or-later This program is free software; you can...

Fedora: Security Advisory for matrix-synapse (FEDORA-2021-2e8ed15b14)

The remote host is missing an update for the Copyright C 2021 Greenbone Networks GmbH Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-or-later This program is free software; you can...

FreeBSD : py-matrix-synapse -- several vulnerabilities (a67e358c-0bf6-11ec-875e-901b0e9408dc)

Matrix developers report : This release patches two moderate severity issues which could reveal metadata about private rooms : - CVE-2021-39164: Enumerating a private room's list of members and their display names. - CVE-2021-39163: Disclosing a private room's name, avatar, topic, and number of...

Fedora: Security Advisory for matrix-synapse (FEDORA-2021-a627cfd31e)

The remote host is missing an update for the Copyright C 2021 Greenbone Networks GmbH Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-or-later This program is free software; you can...

[ASA-202105-19] matrix-synapse: denial of service

Arch Linux Security Advisory ASA-202105-19 ========================================== Severity: Medium Date : 2021-05-25 CVE-ID : CVE-2021-29471 Package : matrix-synapse Type : denial of service Remote : Yes Link : https://security.archlinux.org/AVG-1943 Summary ======= The package matrix-synapse...

Denial of service attack via push rule patterns in matrix-synapse

Impact "Push rules" can specify conditions under which they will match, including eventmatch, which matches event content against a pattern including wildcards. Certain patterns can cause very poor performance in the matching engine, leading to a denial-of-service when processing moderate length...

GHSA-X345-32RC-8H85 Denial of service attack via push rule patterns in matrix-synapse

Impact "Push rules" can specify conditions under which they will match, including eventmatch, which matches event content against a pattern including wildcards. Certain patterns can cause very poor performance in the matching engine, leading to a denial-of-service when processing moderate length...