GHSA-fmvh-rvq5-hhjx
Matrix Synapse Improper Signature Validation
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| PyPI | matrix-synapse | >= 0.33.3, < 0.33.3.1 | 0.33.3.1 |
| PyPI | matrix-synapse | < 0.33.2.1 | 0.33.2.1 |
Details
As written in the advisory (Markdown source, shown as plain text).
Matrix Synapse before 0.33.3.1 and 0.33.2.1 allows remote attackers to spoof events and possibly have unspecified other impacts by leveraging improper transaction and event signature validation.
References
External links from the advisory. They lead to third-party sites.
- https://nvd.nist.gov/vuln/detail/CVE-2018-16515
- https://github.com/matrix-org/synapse/issues/3796#event-1833126269
- https://github.com/matrix-org/synapse/commit/5bf8bc79ebc22c61968f2eb487714813fccbdb9b
- https://github.com/matrix-org/synapse/commit/804dd41e18c449e711e443398b95c9f6c68b6fa2
- https://github.com/matrix-org/synapse/commit/a5a0bf5cf71caed3c4e3677d2bce667c147dadfc
- https://github.com/matrix-org/synapse/commit/c127c8d0421f0228a46ebbe280c9537e8d8ea42b
- https://github.com/matrix-org/synapse
- https://lists.fedoraproject.org/archives/list/[email protected]/message/IRW7YR2H3ASUSYX4AO4KMY3FNVDNYW3P
- https://matrix.org/blog/2018/09/06/critical-security-update-synapse-0-33-3-1