CVE-2022-39374

MEDIUM6.5EPSS 0.17%

Synapse Denial of service due to incorrect application of event authorization rules during state resolution

發布日:2023/5/24修改日:2026/5/20

描述

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

受影響套件(3)

Debian/matrix-synapsefrom 0, < 1.68.0-1
PyPI/matrix-synapse>= 1.62.0, < 1.68.0rc1
PyPI/matrix-synapse>= 1.62.0, < 1.68.0

CVSS 分數

來源	版本	嚴重程度	向量
osv	CVSS 4.0	—	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
osv	CVSS 3.1	MEDIUM6.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

描述

受影響套件(3)

CVSS 分數

參考連結(8)