CVE-2024-8939
Vllm: denials of service in vllm json web api
Severity Score
6.2
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
Track
*SSVC
Descriptions
A vulnerability was found in the ilab model serve component, where improper handling of the best_of parameter in the vllm JSON web API can lead to a Denial of Service (DoS). The API used for LLM-based sentence or chat completion accepts a best_of parameter to return the best completion from several options. When this parameter is set to a large value, the API does not handle timeouts or resource exhaustion properly, allowing an attacker to cause a DoS by consuming excessive system resources. This leads to the API becoming unresponsive, preventing legitimate users from accessing the service.
*Credits:
Red Hat would like to thank Thibault Guittet for reporting this issue.
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:Track
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2024-09-17 CVE Reserved
- 2024-09-17 CVE Published
- 2024-09-18 CVE Updated
- 2024-09-18 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-400: Uncontrolled Resource Consumption
CAPEC
References (2)
URL | Tag | Source |
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https://access.redhat.com/security/cve/CVE-2024-8939 | Vdb Entry | |
https://bugzilla.redhat.com/show_bug.cgi?id=2312782 | Issue Tracking |
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Affected Vendors, Products, and Versions
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