CVE-2022-39346

Missing length validation of user displayname in nextcloud server

Description

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.

Category

3.5
CVSS
Severity: Low
CVSS 3.1 •
EPSS 0.18%
Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org
Affected: nextcloud security-advisories
Published at:
Updated at:

References

Link Tags
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-6w9f-jgjx-4vj6 third party advisory
https://github.com/nextcloud/server/pull/33052 third party advisory patch
https://hackerone.com/reports/1588562 third party advisory permissions required
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/42TARDPRPBTI5TJRBYRVVQGTL6KWRCV5/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TRAER4DCCHHSUDFHQ6LTIH4JEJFF73IU/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R32L3P53AQKQQC652LA5U3AWFTZKPDK3/ vendor advisory

Frequently Asked Questions

What is the severity of CVE-2022-39346?
CVE-2022-39346 has been scored as a low severity vulnerability.
How to fix CVE-2022-39346?
To fix CVE-2022-39346, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-39346 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-39346 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-39346?
CVE-2022-39346 affects nextcloud security-advisories.
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