CVE-2018-0501

Publication date 20 August 2018

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

The mirror:// method implementation in Advanced Package Tool (APT) 1.6.x before 1.6.4 and 1.7.x before 1.7.0~alpha3 mishandles gpg signature verification for the InRelease file of a fallback mirror, aka mirrorfail.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
apt	18.04 LTS bionic	Fixed 1.6.3ubuntu0.1
	16.04 LTS xenial	Not affected
	14.04 LTS trusty	Not affected

Severity score breakdown

CVSS version: CVSS v3.0

Base score 5.9 · Medium

Base metrics

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

Scores

Parameter	Value
Base score	5.9 · Medium
Exploitability score	-
Impact score	-

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

References

Related Ubuntu Security Notices (USN)

USN-3746-1
APT vulnerability
20 August 2018