CVE-2023-45150
Nextcloud Calendar: Remote Memory Exhaustion Vulnerability
Description
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.
INFO
Published Date :
Oct. 16, 2023, 8:15 p.m.
Last Modified :
Nov. 21, 2024, 8:26 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
1.4
Exploitability Score :
2.8
Affected Products
The following products are affected by CVE-2023-45150
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2023-45150.
| URL | Resource |
|---|---|
| https://github.com/nextcloud/calendar/pull/5358 | Patch |
| https://github.com/nextcloud/security-advisories/security/advisories/GHSA-r936-8gwm-w452 | Vendor Advisory |
| https://hackerone.com/reports/2058337 | Exploit Issue Tracking |
| https://github.com/nextcloud/calendar/pull/5358 | Patch |
| https://github.com/nextcloud/security-advisories/security/advisories/GHSA-r936-8gwm-w452 | Vendor Advisory |
| https://hackerone.com/reports/2058337 | Exploit Issue Tracking |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-45150 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-45150 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://github.com/nextcloud/calendar/pull/5358 Added Reference https://github.com/nextcloud/security-advisories/security/advisories/GHSA-r936-8gwm-w452 Added Reference https://hackerone.com/reports/2058337 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Oct. 20, 2023
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L Changed Reference Type https://github.com/nextcloud/calendar/pull/5358 No Types Assigned https://github.com/nextcloud/calendar/pull/5358 Patch Changed Reference Type https://github.com/nextcloud/security-advisories/security/advisories/GHSA-r936-8gwm-w452 No Types Assigned https://github.com/nextcloud/security-advisories/security/advisories/GHSA-r936-8gwm-w452 Vendor Advisory Changed Reference Type https://hackerone.com/reports/2058337 No Types Assigned https://hackerone.com/reports/2058337 Exploit, Issue Tracking Added CWE NIST CWE-354 Added CPE Configuration OR *cpe:2.3:a:nextcloud:calendar:*:*:*:*:*:*:*:* versions from (including) 1.0 up to (excluding) 4.4.4
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-45150 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2023-45150
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.07 }} 0.02%
score
0.32739
percentile