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2 vulnerabilities found for dendrite by matrix-org
CVE-2022-39200 (GCVE-0-2022-39200)
Vulnerability from nvd – Published: 2022-09-12 20:10 – Updated: 2025-04-23 17:12
VLAI
Title
Signature checks not applied to some retrieved missing events
Summary
Dendrite is a Matrix homeserver written in Go. In affected versions events retrieved from a remote homeserver using the `/get_missing_events` path did not have their signatures verified correctly. This could potentially allow a remote homeserver to provide invalid/modified events to Dendrite via this endpoint. Note that this does not apply to events retrieved through other endpoints (e.g. `/event`, `/state`) as they have been correctly verified. Homeservers that have federation disabled are not vulnerable. The problem has been fixed in Dendrite 0.9.8. Users are advised to upgrade. There are no known workarounds for this issue.
Severity
7.3 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/matrix-org/dendrite/security/a… | x_refsource_CONFIRM |
| https://github.com/matrix-org/dendrite/commit/279… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| matrix-org | dendrite |
Affected:
< 0.9.8
|
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CVE-2022-39200 (GCVE-0-2022-39200)
Vulnerability from cvelistv5 – Published: 2022-09-12 20:10 – Updated: 2025-04-23 17:12
VLAI
Title
Signature checks not applied to some retrieved missing events
Summary
Dendrite is a Matrix homeserver written in Go. In affected versions events retrieved from a remote homeserver using the `/get_missing_events` path did not have their signatures verified correctly. This could potentially allow a remote homeserver to provide invalid/modified events to Dendrite via this endpoint. Note that this does not apply to events retrieved through other endpoints (e.g. `/event`, `/state`) as they have been correctly verified. Homeservers that have federation disabled are not vulnerable. The problem has been fixed in Dendrite 0.9.8. Users are advised to upgrade. There are no known workarounds for this issue.
Severity
7.3 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/matrix-org/dendrite/security/a… | x_refsource_CONFIRM |
| https://github.com/matrix-org/dendrite/commit/279… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| matrix-org | dendrite |
Affected:
< 0.9.8
|
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