Vulnerability · Published Mar 30, 2023 · Assigned by GitHub_M

CVE-2023-28644Reference fetch can saturate the server bandwidth for 10 seconds in nextcloud server

Medium 5.7

In plain English

A medium-severity uncontrolled resource consumption in security-advisories from nextcloud. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 50% of all known vulnerabilities).

Severity (CVSS 3.1)5.7Medium

Exploit odds (30 days)0.6%top 49.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Nextcloud server is an open source home cloud implementation. In releases of the 25.0.x branch before 25.0.3 an inefficient fetch operation may impact server performances and/or can lead to a denial of service. This issue has been addressed and it is recommended that the Nextcloud Server is upgraded to 25.0.3. There are no known workarounds for this vulnerability.

Affected products (as reported)

Vendor	Product	Versions
nextcloud	security-advisories	>= 25.0.0, < 25.0.3

Weakness: CWE-400 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H

References

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-9wmj-gp8v-477j x_refsource_CONFIRM
https://github.com/nextcloud/server/pull/36016 x_refsource_MISC