Synapse vulnerable to denial of service (DoS) due to incorrect application of event authorization rules
概要
Synapse vulnerable to denial of service (DoS) due to incorrect application of event authorization rules
原文の説明
取得元が公開している説明をそのまま載せています (多くは英語)。
Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. The Matrix specification specifies a list of event authorization rules which must be checked when determining if an event should be accepted into a room. In versions of Synapse up to and including version 1.61.0, some of these rules are not correctly applied. An attacker could craft events which would be accepted by Synapse but not a spec-conformant server, potentially causing divergence in the room state between servers. Administrators of homeservers with federation enabled are advised to upgrade to version 1.62.0 or higher. Federation can be disabled by setting federation_domain_whitelist to an empty list ([]) as a workaround.
出典: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
ディストリビューション別の修正状況
各ディストリビューションが公開している、この CVE の修正パッケージ
- Debian DEBIAN-CVE-2022-31152 matrix-synapse 修正版: 1.63.0-1
参照URL
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov
- patch github.com
- patch github.com
- web github.com