Mend.io Vulnerability Database

What is a CVE vulnerability ID? icon What is a WS vulnerability ID? icon What is an MSC vulnerability ID? icon
New vulnerability? Tell us about it!
icon

We found results for “”

CVE-2021-29433

Good to know:

icon
icon

Date: April 15, 2021

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.

Language: Python

Severity Score

Related Resources (8)

https://github.com/matrix-org/sydent/security/advisories/GHSA-pw4v-gr34-2553
https://pypi.org/project/matrix-sydent/
https://nvd.nist.gov/vuln/detail/CVE-2021-29433
https://github.com/matrix-org/sydent
https://github.com/pypa/advisory-database/tree/main/vulns/matrix-sydent/PYSEC-2021-24.yaml
https://pypi.org/project/matrix-sydent
https://github.com/matrix-org/sydent/commit/3175fd358ebc2c310eab7a3dbf296ce2bd54c1da
https://www.mend.io/vulnerability-database/CVE-2021-29433

Severity Score

Weakness Type (CWE)

Input Validation

CWE-20

Uncontrolled Resource Consumption ('Resource Exhaustion')

CWE-400

Top Fix

icon

Upgrade Version

Upgrade to version matrix-sydent - 2.3.0

Learn More

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): LOW

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): SINGLE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

Do you need more information?

Contact Us