CVE-2018-6758

Publication date 6 February 2018

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

The uwsgi_expand_path function in core/utils.c in Unbit uWSGI through 2.0.15 has a stack-based buffer overflow via a large directory length.

From the Ubuntu Security Team

It was discovered that uWSGI mishandled certain input resulting in a stack buffer overflow. A remote attacker could use this vulnerability to cause uWSGI to crash or potentially execute arbitrary code.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
uwsgi	18.04 LTS bionic	Not affected
	17.10 artful	Ignored end of life
	16.04 LTS xenial	Fixed 2.0.12-5ubuntu3.2
	14.04 LTS trusty	Fixed 1.9.17.1-5ubuntu0.1

Severity score breakdown

CVSS version: CVSS v3.0

Base score 9.8 · Critical

Base metrics

Parameter	Value
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality impact	High
Integrity impact	High
Availability impact	High

Scores

Parameter	Value
Base score	9.8 · Critical
Exploitability score	-
Impact score	-

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H