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cveRedhatCVE-2024-8939
HistorySep 17, 2024 - 5:15 p.m.

CVE-2024-8939

2024-09-1717:15:11
CWE-400
redhat
web.nvd.nist.gov
14
vulnerability
ilab model serve
dos
best_of parameter
vllm json
web api

CVSS3

6.2

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0

Percentile

9.6%

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.

CNA Affected

[
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux AI (RHEL AI)",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "rhelai1/bootc-nvidia-rhel9",
    "defaultStatus": "affected",
    "cpes": [
      "cpe:/a:redhat:enterprise_linux_ai:1"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux AI (RHEL AI)",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "rhelai1/instructlab-nvidia-rhel9",
    "defaultStatus": "affected",
    "cpes": [
      "cpe:/a:redhat:enterprise_linux_ai:1"
    ]
  }
]

CVSS3

6.2

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0

Percentile

9.6%

Related for CVE-2024-8939