CVE-2023-51771 - Vulnerability Details - OpenCVE

Description

In MicroHttpServer (aka Micro HTTP Server) through a8ab029, _ParseHeader in lib/server.c allows a one-byte recv buffer overflow via a long URI.

Published: 2023-12-25

Score: 9.8 Critical

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

cpe:2.3:a:starnight:micro_http_server:-:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2023-56459	In MicroHttpServer (aka Micro HTTP Server) through a8ab029, _ParseHeader in lib/server.c allows a one-byte recv buffer overflow via a long URI.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00112.

Exploitation poc

Automatable yes

Technical Impact partial

References

Link	Providers
https://github.com/starnight/MicroHttpServer/issues/8
https://github.com/starnight/MicroHttpServer/tree/a8ab029c9a26a4c9f26b9d8a2757b8299aaff120

History

Wed, 23 Apr 2025 17:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Subscriptions

Starnight Micro Http Server

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2023-12-25T00:00:00.000Z

Updated: 2025-04-23T16:15:19.280Z

Reserved: 2023-12-25T00:00:00.000Z

Link: CVE-2023-51771

Vulnrichment

Updated: 2024-08-02T22:48:11.151Z

NVD

Status : Modified

Published: 2023-12-25T05:15:08.730

Modified: 2025-04-23T17:16:49.060

Link: CVE-2023-51771

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-120

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