CVE-2023-32323

MEDIUM5.0EPSS 0.14%

Synapse Outgoing federation to specific hosts can be disabled by sending malicious invites

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. A malicious user on a Synapse homeserver X with permission to create certain state events can disable outbound federation from X to an arbitrary homeserver Y. Synapse instances with federation disabled are not affected. In versions of Synapse up to and including 1.73, Synapse did not limit the size of `invite_room_state`, meaning that it was possible to create an arbitrarily large invite event. Synapse 1.74 refuses to create oversized `invite_room_state` fields. Server operators should upgrade to Synapse 1.74 or newer urgently.

受影響套件(3)

Debian/matrix-synapsefrom 0, < 1.74.0-1
PyPI/matrix-synapsefrom 0, < 1.74.0
PyPI/matrix-synapsefrom 0, < 1.74.0

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:N/SC:N/SI:N/SA:L
osv	CVSS 3.1	MEDIUM5.0	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L

描述

受影響套件(3)

CVSS 分數

參考連結(8)