Nextcloud Server 25.0.x before 25.0.3: Inefficient Fetch Causing DoS
CVE-2023-28644 Published on March 30, 2023
Reference fetch can saturate the server bandwidth for 10 seconds in nextcloud server
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.
Vulnerability Analysis
CVE-2023-28644 is exploitable with network access, requires user interaction and a small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.
Weakness Type
What is a Resource Exhaustion Vulnerability?
The software does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.
CVE-2023-28644 has been classified to as a Resource Exhaustion vulnerability or weakness.
Products Associated with CVE-2023-28644
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Affected Versions
nextcloud security-advisories Version >= 25.0.0, < 25.0.3 is affected by CVE-2023-28644Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.