CVE-2018-10657: Input Validation
First published: Wed May 02 2018(Updated: )
Matrix Synapse before 0.28.1 is prone to a denial of service flaw where malicious events injected with depth = 2^63 - 1 render rooms unusable, related to federation/federation_base.py and handlers/message.py, as exploited in the wild in April 2018.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Matrix Synapse | <0.28.1 |
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Reference Links
- https://nvd.nist.gov/vuln/detail/CVE-2018-10657
- https://github.com/matrix-org/synapse/commit/33f469ba19586bbafa0cf2c7d7c35463bdab87eb
- https://matrix.org/blog/2018/05/01/security-update-synapse-0-28-1/
- https://docs.google.com/document/d/1I3fi2S-XnpO45qrpCsowZv8P8dHcNZ4fsBsbOW7KABI/edit#heading=h.fj95ykuss7s1
- https://github.com/advisories/GHSA-vmcc-4p4x-x7wg (Advisory)
Frequently Asked Questions
What is CVE-2018-10657?
CVE-2018-10657 is a vulnerability in Matrix Synapse before version 0.28.1 that allows for a denial of service attack by injecting malicious events.
How does CVE-2018-10657 affect Matrix Synapse?
CVE-2018-10657 affects Matrix Synapse versions before 0.28.1 by making rooms unusable through the injection of malicious events.
What is the severity of CVE-2018-10657?
CVE-2018-10657 has a severity rating of 7.5 (high).
How can I fix CVE-2018-10657?
To fix CVE-2018-10657, upgrade Matrix Synapse to version 0.28.1 or higher.
Where can I find more information about CVE-2018-10657?
You can find more information about CVE-2018-10657 at the following references: [NVD](https://nvd.nist.gov/vuln/detail/CVE-2018-10657), [GitHub](https://github.com/matrix-org/synapse/commit/33f469ba19586bbafa0cf2c7d7c35463bdab87eb), [Matrix.org](https://matrix.org/blog/2018/05/01/security-update-synapse-0-28-1/).
- collector/github-advisory-latest
- alias/GHSA-vmcc-4p4x-x7wg
- alias/CVE-2018-10657
- collector/github-advisory
- collector/nvd-index
- collector/nvd-cve
- agent/author
- agent/type
- agent/softwarecombine
- agent/weakness
- agent/references
- agent/remedy
- agent/severity
- agent/tags
- agent/description
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/first-publish-date
- agent/event
- agent/trending
- package-manager/pip
- vendor/matrix
- canonical/matrix synapse