CVE-2022-39346 — Improper Input Validation in Security-advisories

CWE-20 — Improper Input ValidationCWE-400 — Uncontrolled Resource Consumption2 documents2 sources
Severity
6.5MEDIUMNVD
CNA3.5
EPSS
1.6%
top 18.27%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
Nextcloud Security-advisoriesNextcloud Enterprise ServerNextcloud Server+1 more
Timeline
PublishedNov 25

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 2.8 | Impact: 3.6

Affected Packages3 packages

▶NVDnextcloud/nextcloud_server23.0.0 — 23.0.7+2
▶NVDnextcloud/nextcloud_enterprise_server23.0.0 — 23.0.7+2
▶CVEListV5nextcloud/security-advisories< 22.2.10+2

Also affects: Fedora 35, 36, 37

Patches

Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

1
CVEList
Missing length validation of user displayname in nextcloud server↗2022-11-25
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CVE-2022-39346 — Improper Input Validation | cvebase