GHSA-vmcc-4p4x-x7wg

Suggest an improvement
Source
https://github.com/advisories/GHSA-vmcc-4p4x-x7wg
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-vmcc-4p4x-x7wg/GHSA-vmcc-4p4x-x7wg.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-vmcc-4p4x-x7wg
Aliases
Published
2022-05-14T03:20:03Z
Modified
2023-11-08T03:59:43.692858Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Matrix Synapse DoS
Details

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.

References

Affected packages

PyPI / matrix-synapse

Package

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.28.1