4.3 - CVE-2023-45150

Executive Summary

Informations
Name	CVE-2023-45150	First vendor Publication	2023-10-16
Vendor	Cve	Last vendor Modification	2023-10-20

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 :
Cvss Base Score	N/A	Attack Range	N/A
Cvss Impact Score	N/A	Attack Complexity	N/A
Cvss Expoit Score	N/A	Authentication	N/A
Calculate full CVSS 2.0 Vectors scores

Detail

Nextcloud calendar is a calendar app for the Nextcloud server platform. Due to missing precondition checks the server was trying to validate strings of any length as email addresses even when megabytes of data were provided, eventually making the server busy and unresponsive. It is recommended that the Nextcloud Calendar app is upgraded to 4.4.4. The only workaround for users unable to upgrade is to disable the calendar app.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-45150

CWE : Common Weakness Enumeration

%	Id	Name
100 %	CWE-354	Improper Validation of Integrity Check Value

CPE : Common Platform Enumeration

Type	Description	Count
Application	Nextcloud Calendar cpe:2.3:a:nextcloud:calendar:1.6.1:::::::* cpe:2.3:a:nextcloud:calendar:1.6.0:::::::* cpe:2.3:a:nextcloud:calendar::::::::	3

Sources (Detail)

Source	Url
MISC	https://github.com/nextcloud/calendar/pull/5358 https://github.com/nextcloud/security-advisories/security/advisories/GHSA-r93... https://hackerone.com/reports/2058337