CVE-2022-39374
unknown
CVSS v3
—
CVSS v2
—
VIR risk
—
Description
Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. If Synapse and a malicious homeserver are both joined to the same room, the malicious homeserver can trick Synapse into accepting previously rejected events into its view of the current state of that room. This can be exploited in a way that causes all further messages and state changes sent in that room from the vulnerable homeserver to be rejected. This issue has been patched in version 1.68.0
Predictions
Exploit likelihood
30%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2022-39374
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | forky | fixed | 1.68.0-1 |
| debian | sid | fixed | 1.68.0-1 |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| PyPI | matrix-synapse | >=1.62.0,<1.68.0rc1 | 1.68.0rc1 |
| PyPI | matrix-synapse | >=1.62.0,<1.68.0 | 1.68.0 |
References
- https://github.com/matrix-org/synapse/security/advisories/GHSA-p9qp-c452-f9r7
- https://nvd.nist.gov/vuln/detail/CVE-2022-39374
- https://github.com/matrix-org/synapse/pull/13723
- https://github.com/matrix-org/synapse/commit/b73cbb82157d9666e8d667733afebc0d09ed858c
- https://github.com/matrix-org/synapse
- https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2023-66.yaml
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UJIJRP5ZH6B3KGFLHCAKR2IX2Y4Z25QD
- https://security-tracker.debian.org/tracker/CVE-2022-39374
Verify integrity in audit chain (admin only). AS-IS.