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CVE-2022-39346

Good to know:

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Date: November 25, 2022

Nextcloud server is an open source personal cloud server. Affected versions of nextcloud server did not properly limit user display names which could allow a malicious users to overload the backing database and cause a denial of service. It is recommended that the Nextcloud Server is upgraded to 22.2.10, 23.0.7 or 24.0.3. There are no known workarounds for this issue.

Language: PHP

Severity Score

Related Resources (8)

https://github.com/nextcloud/server/pull/33052
https://hackerone.com/reports/1588562
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/42TARDPRPBTI5TJRBYRVVQGTL6KWRCV5/
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-6w9f-jgjx-4vj6
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TRAER4DCCHHSUDFHQ6LTIH4JEJFF73IU/
https://nvd.nist.gov/vuln/detail/CVE-2022-39346
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/R32L3P53AQKQQC652LA5U3AWFTZKPDK3/
https://www.mend.io/vulnerability-database/CVE-2022-39346

Severity Score

Weakness Type (CWE)

Input Validation

CWE-20

Uncontrolled Resource Consumption ('Resource Exhaustion')

CWE-400

Top Fix

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Upgrade Version

Upgrade to version v22.2.10,v23.0.7,v24.0.3

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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): HIGH

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