CVE-2021-29433

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Source

https://cve.org/CVERecord?id=CVE-2021-29433

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-29433.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2021-29433

Aliases

Published

2021-04-15T18:15:12.497Z

Modified

2026-07-09T01:26:02.872714Z

Severity

4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L CVSS Calculator

Summary

[none]

Details

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.

References

Affected packages

Git / github.com/matrix-org/sydent

Affected ranges

Type

GIT

Repo

https://github.com/matrix-org/sydent

Events

Introduced

Fixed

c2ab10897500dbba1c0d4be33f42985d81bbad7d

Fixed

3175fd358ebc2c310eab7a3dbf296ce2bd54c1da

Database specific

{
    "cpe": "cpe:2.3:a:matrix:sydent:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "2.3.0"
        }
    ],
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ]
}

Affected versions

Other

fosdem_2021-01-15

v1.*

v1.0.0

v1.0.1

v1.0.2

v1.0.3

v2.*

v2.0.0

v2.0.1

v2.1.0

v2.2.0

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-29433.json"