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MediumVulnerabilityLLM-specific

CVE-2024-8939: ilab model serve denial of service via best_of parameter in vllm JSON API

Identifier
CVE-2024-8939
Published
Record updated
View JSON
Affected
  • vllm <= 0.5.0.post1
Fixed in
No fixed version was stated when the source was last read.
Known exploitation
Not listed in the CISA Known Exploited Vulnerabilities catalog at the last check.
EPSS
0.2%

Summary

CVE-2024-8939 affects the ilab model serve component. Improper handling of the best_of parameter in the vllm JSON web API can lead to a Denial of Service (DoS). When best_of is set to a large value, the API does not handle timeouts or resource exhaustion properly, so an attacker can consume excessive system resources and make the API unresponsive to legitimate users.

Mitigation

The source does not state a fix yet. Check the original advisory for updates.