CVE-2023-51771 — CRITICAL (9.8)

Vulnerability 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.

CVSS Score

9.8

CRITICAL

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Starnight	Micro Http Server	-

Related Weaknesses (CWE)

CWE-120

References

https://github.com/starnight/MicroHttpServer/issues/8ExploitIssue Tracking
https://github.com/starnight/MicroHttpServer/tree/a8ab029c9a26a4c9f26b9d8a2757b8Product
https://github.com/starnight/MicroHttpServer/issues/8ExploitIssue Tracking
https://github.com/starnight/MicroHttpServer/tree/a8ab029c9a26a4c9f26b9d8a2757b8Product

FAQ

What is CVE-2023-51771?

CVE-2023-51771 is a vulnerability with a CVSS score of 9.8 (CRITICAL). In MicroHttpServer (aka Micro HTTP Server) through a8ab029, _ParseHeader in lib/server.c allows a one-byte recv buffer overflow via a long URI.

How severe is CVE-2023-51771?

CVE-2023-51771 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2023-51771?

Check the references section above for vendor advisories and patch information. Affected products include: Starnight Micro Http Server.