CVE-2021-21393
CVE-2021-21393 · Denial of service (via resource exhaustion) due to improper input validation on groups/communities endpoints
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Synapse is a Matrix reference homeserver written in python (pypi package matrix-synapse). Matrix is an ecosystem for open federated Instant Messaging and VoIP. In Synapse before version 1.28.0 Synapse is missing input validation of some parameters on the endpoints used to confirm third-party identifiers could cause excessive use of disk space and memory leading to resource exhaustion. Note that the groups feature is not part of the Matrix specification and the chosen maximum lengths are arbitrary. Not all clients might abide by them. Refer to referenced GitHub security advisory for additional details including workarounds.
CVSS 5.3 · Mittel · EPSS 1,6% · Korrektur verfügbar
- Veröffentlicht
- Aktualisiert
Technologie-Stack: system · python
Betroffene Produkte und Versionen
synapse
- Softwareversionen
- < 1.28.0: Betroffen
Keine Korrektur veröffentlicht
matrix-synapse PyPI
- Softwareversionen
- 0.33.5
- 0.33.5.1
- 0.33.6
- 0.33.6rc1
- 0.33.7
- 0.33.7rc1
- 0.33.7rc2
- 0.33.8
- 0.33.8rc2
- 0.33.9
- 0.34.0
- 0.34.0.1
- 0.34.0rc1
- 0.34.0rc2
- 0.34.1.1
- 0.99.0
- 0.99.0rc1
- 0.99.0rc2
- 0.99.0rc3
- 0.99.0rc4
- 0.99.1
- 0.99.1.1
- 0.99.1rc1
- 0.99.1rc2
- 0.99.2
- 0.99.2rc1
- 0.99.3
- 0.99.3.1
- 0.99.3.2
- 0.99.3rc1
- 0.99.4
- 0.99.4rc1
- 0.99.5
- 0.99.5.1
- 0.99.5.2
- 0.99.5rc1
- 1.0.0
- 1.0.0rc1
- 1.0.0rc2
- 1.0.0rc3
- 1.1.0
- 1.1.0rc1
- 1.1.0rc2
- 1.10.0
- 1.10.0rc1
- 1.10.0rc2
- 1.10.0rc3
- 1.10.0rc5
- 1.10.1
- 1.11.0
- 1.11.0rc1
- 1.11.1
- 1.12.0
- 1.12.0rc1
- 1.12.1
- 1.12.1rc1
- 1.12.2
- 1.12.3
- 1.12.4
- 1.12.4rc1
- 1.13.0
- 1.13.0rc1
- 1.13.0rc2
- 1.13.0rc3
- 1.14.0
- 1.14.0rc1
- 1.14.0rc2
- 1.15.0
- 1.15.0rc1
- 1.15.1
- 1.15.2
- 1.16.0
- 1.16.0rc1
- 1.16.0rc2
- 1.16.1
- 1.17.0
- 1.17.0rc1
- 1.18.0
- 1.18.0rc1
- 1.18.0rc2
- 1.19.0
- 1.19.0rc1
- 1.19.1
- 1.19.1rc1
- 1.19.2
- 1.19.3
- 1.2.0
- 1.2.0rc1
- 1.2.0rc2
- 1.2.1
- 1.20.0
- 1.20.0rc1
- 1.20.0rc2
- 1.20.0rc3
- 1.20.0rc4
- 1.20.0rc5
- 1.20.1
- 1.21.0
- 1.21.0rc1
- 1.21.0rc2
- 1.21.0rc3
- 1.21.1
- 1.21.2
- 1.22.0
- 1.22.0rc1
- 1.22.0rc2
- 1.22.1
- 1.23.0
- 1.23.0rc1
- 1.23.1
- 1.24.0
- 1.24.0rc1
- 1.24.0rc2
- 1.25.0
- 1.25.0rc1
- 1.26.0
- 1.26.0rc1
- 1.26.0rc2
- 1.27.0
- 1.27.0rc1
- 1.27.0rc2
- 1.28.0rc1
- 1.3.0
- 1.3.0rc1
- 1.3.1
- 1.4.0
- 1.4.0rc1
- 1.4.0rc2
- 1.4.1
- 1.4.1rc1
- 1.5.0
- 1.5.0rc1
- 1.5.0rc2
- 1.5.1
- 1.6.0
- 1.6.0rc1
- 1.6.0rc2
- 1.6.1
- 1.7.0
- 1.7.0rc1
- 1.7.0rc2
- 1.7.1
- 1.7.2
- 1.7.3
- 1.8.0
- 1.8.0rc1
- 1.9.0
- 1.9.0.dev1
- 1.9.0.dev2
- 1.9.0rc1
- 1.9.1
- Betroffene Versionsbereiche
- ECOSYSTEM: < 1.28.0
Auf 1.28.0 aktualisieren
matrix-synapse PyPI
- Softwareversionen
- 0.33.5
- 0.33.5.1
- 0.33.6rc1
- 0.33.6
- 0.33.7rc1
- 0.33.7rc2
- 0.33.7
- 0.33.8rc2
- 0.33.8
- 0.33.9
- 0.34.0rc1
- 0.34.0rc2
- 0.34.0
- 0.34.0.1
- 0.34.1.1
- 0.99.0rc1
- 0.99.0rc2
- 0.99.0rc3
- 0.99.0rc4
- 0.99.0
- 0.99.1rc1
- 0.99.1rc2
- 0.99.1
- 0.99.1.1
- 0.99.2rc1
- 0.99.2
- 0.99.3rc1
- 0.99.3
- 0.99.3.1
- 0.99.3.2
- 0.99.4rc1
- 0.99.4
- 0.99.5rc1
- 0.99.5
- 0.99.5.1
- 0.99.5.2
- 1.0.0rc1
- 1.0.0rc2
- 1.0.0rc3
- 1.0.0
- 1.1.0rc1
- 1.1.0rc2
- 1.1.0
- 1.2.0rc1
- 1.2.0rc2
- 1.2.0
- 1.2.1
- 1.3.0rc1
- 1.3.0
- 1.3.1
- 1.4.0rc1
- 1.4.0rc2
- 1.4.0
- 1.4.1rc1
- 1.4.1
- 1.5.0rc1
- 1.5.0rc2
- 1.5.0
- 1.5.1
- 1.6.0rc1
- 1.6.0rc2
- 1.6.0
- 1.6.1
- 1.7.0rc1
- 1.7.0rc2
- 1.7.0
- 1.7.1
- 1.7.2
- 1.7.3
- 1.8.0rc1
- 1.8.0
- 1.9.0.dev1
- 1.9.0.dev2
- 1.9.0rc1
- 1.9.0
- 1.9.1
- 1.10.0rc1
- 1.10.0rc2
- 1.10.0rc3
- 1.10.0rc5
- 1.10.0
- 1.10.1
- 1.11.0rc1
- 1.11.0
- 1.11.1
- 1.12.0rc1
- 1.12.0
- 1.12.1rc1
- 1.12.1
- 1.12.2
- 1.12.3
- 1.12.4rc1
- 1.12.4
- 1.13.0rc1
- 1.13.0rc2
- 1.13.0rc3
- 1.13.0
- 1.14.0rc1
- 1.14.0rc2
- 1.14.0
- 1.15.0rc1
- 1.15.0
- 1.15.1
- 1.15.2
- 1.16.0rc1
- 1.16.0rc2
- 1.16.0
- 1.16.1
- 1.17.0rc1
- 1.17.0
- 1.18.0rc1
- 1.18.0rc2
- 1.18.0
- 1.19.0rc1
- 1.19.0
- 1.19.1rc1
- 1.19.1
- 1.19.2
- 1.19.3
- 1.20.0rc1
- 1.20.0rc2
- 1.20.0rc3
- 1.20.0rc4
- 1.20.0rc5
- 1.20.0
- 1.20.1
- 1.21.0rc1
- 1.21.0rc2
- 1.21.0rc3
- 1.21.0
- 1.21.1
- 1.21.2
- 1.22.0rc1
- 1.22.0rc2
- 1.22.0
- 1.22.1
- 1.23.0rc1
- 1.23.0
- 1.23.1
- 1.24.0rc1
- 1.24.0rc2
- 1.24.0
- 1.25.0rc1
- 1.25.0
- 1.26.0rc1
- 1.26.0rc2
- 1.26.0
- 1.27.0rc1
- 1.27.0rc2
- 1.27.0
- 1.28.0rc1
- Betroffene Versionsbereiche
- ECOSYSTEM: < 1.28.0
Auf 1.28.0 aktualisieren
matrix-synapse Ubuntu:Pro:20.04:LTS
- Softwareversionen
- 1.3.0-1
- 1.4.0-1
- 1.5.0-1
- 1.5.1-1
- 1.6.0-1
- 1.6.1-1
- 1.7.0-2
- 1.7.1-1
- 1.7.2-1
- 1.7.3-1
- 1.8.0-1
- 1.9.0-1
- 1.9.1-1
- 1.10.0-1
- 1.10.0-2
- 1.11.0-1
- 1.11.0-1ubuntu0.1~esm2
- Betroffene Versionsbereiche
- ECOSYSTEM: (−∞, +∞)
Keine Korrektur veröffentlicht
matrix-synapse Ubuntu:Pro:22.04:LTS
- Softwareversionen
- 1.39.0-1
- 1.47.0-2
- 1.47.1-1
- 1.48.0-1
- 1.49.0-1
- 1.49.2-1
- 1.50.1-1
- 1.50.2-1
- 1.51.0-1
- 1.52.0-1
- 1.53.0-1
- 1.53.0-1ubuntu0.1~esm2
- Betroffene Versionsbereiche
- ECOSYSTEM: (−∞, +∞)
Keine Korrektur veröffentlicht
Originalquellen
- https://pypi.org/project/matrix-synapse/
- https://github.com/matrix-org/synapse/pull/9321
- https://github.com/matrix-org/synapse/pull/9393
- https://github.com/matrix-org/synapse/security/advisories/GHSA-jrh7-mhhx-6h88
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TNNAJOZNMVMXM6AS7RFFKB4QLUJ4IFEY/
- https://nvd.nist.gov/vuln/detail/CVE-2021-21393