CVE-2021-40402

Publication date 14 April 2022

Last updated 11 July 2025

Ubuntu priority

Cvss 3 Severity Score

Description

An out-of-bounds read vulnerability exists in the RS-274X aperture macro multiple outline primitives functionality of Gerbv 2.7.0 and dev (commit b5f1eacd), and Gerbv forked 2.7.1 and 2.8.0. A specially-crafted Gerber file can lead to information disclosure. An attacker can provide a malicious file to trigger this vulnerability.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
gerbv	25.10 questing	Vulnerable, fix deferred
	25.04 plucky	Vulnerable, fix deferred
	24.10 oracular	Ignored end of life, was deferred [2023-07-07]
	24.04 LTS noble	Vulnerable, fix deferred
	23.10 mantic	Ignored end of life, was deferred [2023-07-07]
	23.04 lunar	Ignored end of life, was deferred [2023-07-07]
	22.10 kinetic	Ignored end of life, was deferred [2023-07-07]
	22.04 LTS jammy	Vulnerable, fix deferred
	21.10 impish	Ignored end of life
	20.04 LTS focal	Vulnerable, fix deferred
	18.04 LTS bionic	Vulnerable, fix deferred
	16.04 LTS xenial	Vulnerable, fix deferred
	14.04 LTS trusty	Ignored end of standard support

Notes

iosifache

As per https://github.com/gerbv/gerbv/issues/80, the patching is still work in progress. There are multiple commits targeting this issue.

Severity score breakdown

Parameter	Value
Base score	9.3 · Critical
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Changed
Confidentiality	Low
Integrity impact	None
Availability impact	High
Vector	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:H