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.

CVSS v3 4.3 MEDIUM
CVSS v2.0 4.0 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

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

4.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:S/C:N/I:N/A:P

Exploitability : 8.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

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

Configurations

Configuration 1 (hide)

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

History

21 Nov 2024, 06:01

Type	Values Removed	Values Added
References	~~() https://github.com/matrix-org/sydent/commit/3175fd358ebc2c310eab7a3dbf296ce2bd54c1da - Patch, Third Party Advisory~~	() https://github.com/matrix-org/sydent/commit/3175fd358ebc2c310eab7a3dbf296ce2bd54c1da - Patch, Third Party Advisory
References	~~() https://github.com/matrix-org/sydent/security/advisories/GHSA-pw4v-gr34-2553 - Patch, Third Party Advisory~~	() https://github.com/matrix-org/sydent/security/advisories/GHSA-pw4v-gr34-2553 - Patch, Third Party Advisory

Information

Published : 2021-04-15 18:15

Updated : 2024-11-21 06:01

NVD link : CVE-2021-29433

Mitre link : CVE-2021-29433

CVE.ORG link : CVE-2021-29433

JSON object : View

Products Affected

matrix

sydent

CWE

CWE-20

Improper Input Validation

CWE-400

Uncontrolled Resource Consumption

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