Advisory details:
github_osv / GHSA-wc36-9694-f9rf
| Advisory ID | github_osv/GHSA-wc36-9694-f9rf |
| Aliases |
CVE-2024-8939
|
| Summary | vLLM Denial of Service via the best_of parameter 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. |
| Status | Published |
| Exploitability | 0.5 |
| Weighted Severity | 6.2 |
| Risk | 3.1 |
| Affected and Fixed Packages | Package Details |
| Introduced and Fixed Package Commit Patches | Package Commit Patches Details |
| System | Score | Found at |
|---|---|---|
| cvssv3.1 | 6.2 | https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/09/GHSA-wc36-9694-f9rf/GHSA-wc36-9694-f9rf.json |
| cvssv4 | 6.9 | https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/09/GHSA-wc36-9694-f9rf/GHSA-wc36-9694-f9rf.json |
| generic_textual | MODERATE |
| Reference id | Reference type | URL |
|---|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=2312782 | ||
| https://github.com/vllm-project/vllm | ||
| https://github.com/vllm-project/vllm/issues/6137 | ||
| CVE-2024-8939 | https://access.redhat.com/security/cve/CVE-2024-8939 | |
| CVE-2024-8939 | https://nvd.nist.gov/vuln/detail/CVE-2024-8939 |
No EPSS data available for this advisory.
| Patch URL | |
|---|---|
| There are no known patches. | |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
| Attack Vector (AV) | Attack Complexity (AC) | Attack Requirements (AT) | Privileges Required (PR) | User Interaction (UI) | Vulnerable System Impact Confidentiality (VC) | Vulnerable System Impact Integrity (VI) | Vulnerable System Impact Availability (VA) | Subsequent System Impact Confidentiality (SC) | Subsequent System Impact Integrity (SI) | Subsequent System Impact Availability (SA) |
|---|---|---|---|---|---|---|---|---|---|---|
network adjacent local physical |
low high |
none present |
none low high |
none passive active |
high low none |
high low none |
high low none |
high low none |
high low none |
high low none |
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-09-17T19:51:11Z/
Decision: Track
Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2024/8xxx/CVE-2024-8939.json
Source Advisory: vulnrichment/CVE-2024-8939
[{'Exploitation': 'none'},
{'Automatable': 'no'},
{'Technical Impact': 'partial'},
{'Mission Prevalence': 'minimal'},
{'Public Well-being Impact': 'material'},
{'Mission & Well-being': 'medium'}]