Executive Summary

Informations
Name CVE-2021-29433 First vendor Publication 2021-04-15
Vendor Cve Last vendor Modification 2022-08-02

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Overall CVSS Score 4.3
Base Score 4.3 Environmental Score 4.3
impact SubScore 1.4 Temporal Score 4.3
Exploitabality Sub Score 2.8
 
Attack Vector Network Attack Complexity Low
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact Low
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:S/C:N/I:N/A:P)
Cvss Base Score 4 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 8 Authentication Requires single instance
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29433

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-20 Improper Input Validation

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1

Sources (Detail)

Source Url
CONFIRM https://github.com/matrix-org/sydent/security/advisories/GHSA-pw4v-gr34-2553
MISC https://github.com/matrix-org/sydent/commit/3175fd358ebc2c310eab7a3dbf296ce2b...

Alert History

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Date Informations
2022-08-02 21:27:42
  • Multiple Updates
2022-07-21 17:27:25
  • Multiple Updates
2021-06-30 12:39:47
  • Multiple Updates
2021-06-07 17:22:52
  • Multiple Updates
2021-05-04 14:09:56
  • Multiple Updates
2021-04-22 21:23:08
  • Multiple Updates
2021-04-16 00:22:59
  • First insertion