CVE Vulnerability

CVE-2021-29433

Sydent is a reference Matrix identity server. In Sydent versions 2.2.0 and prior, sissing 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. A patch for the vulnerability is in version 2.3.0. No workarounds are known to exist.

4 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

4.3 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References
Link Resource
https://github.com/matrix-org/sydent/security/advisories/GHSA-pw4v-gr34-2553 Patch Third Party Advisory
https://github.com/matrix-org/sydent/commit/3175fd358ebc2c310eab7a3dbf296ce2bd54c1da Patch Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:matrix:sydent:*:*:*:*:*:*:*:*
Information

Published : 2021-04-15 06:15

Updated : 2022-08-02 04:01

NVD link : CVE-2021-29433

Mitre link : CVE-2021-29433

Products Affected
No products.
CWE
CWE-20