high7.5
CVE-2018-10657
Matrix Synapse DoS
Impact
Matrix Synapse before 0.28.1 is prone to a denial of service flaw where malicious events injected with depth = 2<sup>63</sup> - 1 render rooms unusable, related to `federation/federation_base.py` and `handlers/message.py`, as exploited in the wild in April 2018.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| pip | matrix-synapse | < 0.28.1 | 0.28.1 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Matrix | Synapse | before 0.28.1 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/matrix-org/synapse/commit/33f469ba19586bbafa0cf2c7d7c35463bdab87eb
- https://matrix.org/blog/2018/05/01/security-update-synapse-0-28-1/
- https://github.com/advisories/GHSA-vmcc-4p4x-x7wg
- https://nvd.nist.gov/vuln/detail/CVE-2018-10657
- https://docs.google.com/document/d/1I3fi2S-XnpO45qrpCsowZv8P8dHcNZ4fsBsbOW7KABI/edit#heading=h.fj95ykuss7s1