Denial of Service Vulnerability in Matrix Synapse before 0.28.1

CVE-2018-10657 · MEDIUM Severity

AV:N/AC:L/AU:N/C:N/I:N/A:P

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.

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