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Insecure Randomness Affecting matrix-synapse package, versions [,0.99.3.1)

Severity

 Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team

    Threat Intelligence

    EPSS
    0.17% (55th percentile)

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  • Snyk ID SNYK-PYTHON-MATRIXSYNAPSE-1571829
  • published 30 Aug 2021
  • disclosed 9 May 2019
  • credit Enguerran Gillier
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Introduced: 9 May 2019

CVE-2019-11842 Open this link in a new tab
CWE-330 Open this link in a new tab

How to fix?

Upgrade matrix-synapse to version 0.99.3.1 or higher.

Overview

matrix-synapse is an ecosystem for open federated Instant Messaging and VoIP.

Affected versions of this package are vulnerable to Insecure Randomness. Random IDs and authentication tokens are generated using an insecure random number generator, allowing an attacker to predict these values.

CVSS Scores

version 3.1
Expand this section

Snyk

Recommended
5.9 medium
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    High
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    None
  • Availability (A)
    None