| Title | Synapse における入力確認に関する脆弱性 |
|---|---|
| Summary | Synapse には、入力確認に関する脆弱性が存在します。 |
| Possible impacts | サービス運用妨害 (DoS) 状態にされる可能性があります。 |
| Solution | ベンダより正式な対策が公開されています。ベンダ情報を参照して適切な対策を実施してください。 |
| Publication Date | Feb. 9, 2021, midnight |
| Registration Date | Dec. 17, 2021, 11:36 a.m. |
| Last Update | Dec. 17, 2021, 11:36 a.m. |
| CVSS3.0 : 警告 | |
| Score | 6.5 |
|---|---|
| Vector | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| CVSS2.0 : 警告 | |
| Score | 4.3 |
|---|---|
| Vector | AV:N/AC:M/Au:N/C:N/I:N/A:P |
| Fedora Project |
| Fedora |
| Matrix |
| Synapse 1.28.0 未満 |
| No | Changed Details | Date of change |
|---|---|---|
| 1 | [2021年12月17日] 掲載 |
Dec. 17, 2021, 11:36 a.m. |
| Summary | Synapse is a Matrix reference homeserver written in python (pypi package matrix-synapse). Matrix is an ecosystem for open federated Instant Messaging and VoIP. In Synapse before version 1.28.0 Synapse is missing input validation of some parameters on the endpoints used to confirm third-party identifiers could cause excessive use of disk space and memory leading to resource exhaustion. Note that the groups feature is not part of the Matrix specification and the chosen maximum lengths are arbitrary. Not all clients might abide by them. Refer to referenced GitHub security advisory for additional details including workarounds. |
|---|---|
| Publication Date | April 13, 2021, 7:15 a.m. |
| Registration Date | April 13, 2021, 10:02 a.m. |
| Last Update | Nov. 21, 2024, 2:48 p.m. |
| Configuration1 | or higher | or less | more than | less than | |
| cpe:2.3:a:matrix:synapse:*:*:*:*:*:*:*:* | 0.24.0 | 1.28.0 | |||
| Configuration2 | or higher | or less | more than | less than | |
| cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* | |||||