Improper Input Validation Affecting matrix-synapse package, versions <0.28.1+dfsg-1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.12% (48th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-MATRIXSYNAPSE-279813
  • published2 May 2018
  • disclosed2 May 2018

Introduced: 2 May 2018

CVE-2018-10657  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade Debian:unstable matrix-synapse to version 0.28.1+dfsg-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream matrix-synapse package and not the matrix-synapse package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

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.