CVE-2022-39200

Katalog CVE

CVSS 5.3 · Medium EPSS 0,36%

Kerentanan Improper Verification of Cryptographic Signature pada matrix dendrite. Skor CVSS 3.1 5.3 (Medium) menurut NVD.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

12 September 2022

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

5.3 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-347: Improper Verification of Cryptographic Signature

EPSS (30 hari)

0,36% peluang dieksploitasi; lebih tinggi dari 28,0% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/matrix-org/dendrite/commit/2792d0490f3771488bad346981b8c26479a872c3 patch · advisory pihak ketiga
• https://github.com/matrix-org/dendrite/security/advisories/GHSA-pfw4-xjgm-267c advisory pihak ketiga