CVE-2022-30780 - Lighttpd - Denial of Service

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Linux • CVEs
  • Title : Lighttpd - Denial of Service
  • Author : @podalirius_
  • CVSS : 7.5 (High)
  • CVSS Vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Summary

An unauthenticated attacker can send an HTTP request with an URL overflowing the maximum URL length, resulting in a denial of service.

Vulnerable versions

The following versions of lighttpd are vulnerable:

Software Version Vulnerable
Lighttpd 1.4.58 Yes :white_check_mark:
Lighttpd 1.4.57 Yes :white_check_mark:
Lighttpd 1.4.56 Yes :white_check_mark:

Exploitation

Demonstration


Mitigations

In order to patch this vulnerability you need to update lighttpd to a version greater than 1.4.59.

References