CVE-2021-40401

Debian Security Advisory 5306-1

Severity Score

8.6

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Attend

*SSVC

Descriptions

A use-after-free vulnerability exists in the RS-274X aperture definition tokenization functionality of Gerbv 2.7.0 and dev (commit b5f1eacd) and Gerbv forked 2.7.1. A specially-crafted gerber file can lead to code execution. An attacker can provide a malicious file to trigger this vulnerability.

Se presenta una vulnerabilidad de uso de memoria previamente liberada en la funcionalidad RS-274X aperture definition tokenization de Gerbv versiones 2.7.0 y dev (commit b5f1eacd) y Gerbv forked versión 2.7.1. Un archivo gerber especialmente diseñado puede conllevar a una ejecución de código. Un atacante puede proporcionar un archivo malicioso para desencadenar esta vulnerabilidad

Claudio Bozzato discovered that Gerbv incorrectly handled certain Gerber files. An attacker could possibly use this issue to crash Gerbv , or execute arbitrary code. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 20.04 LTS. Claudio Bozzato discovered that Gerbv incorrectly handled certain Gerber files. An attacker could possibly use this issue to disclose information, crash Gerbv , or execute arbitrary code. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 20.04 LTS.

*Credits: N/A

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

Low

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:Attend

Exploitation

Poc

Automatable

Yes

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2021-09-01 CVE Reserved
2022-02-04 CVE Published
2025-03-30 EPSS Updated
2025-04-15 CVE Updated
2025-04-15 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-252: Unchecked Return Value

CAPEC

References (3)

URL	Tag	Source

URL	Date	SRC
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1415	2025-04-15

URL	Date	SRC

URL	Date	SRC
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TUM5GIUZJ7AVHVCXDZW6ZVCAPV2ISN47	2023-11-07
https://www.debian.org/security/2022/dsa-5306	2023-11-07

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Gerbv Project Search vendor "Gerbv Project"		Gerbv Search vendor "Gerbv Project" for product "Gerbv"				2.7.0 Search vendor "Gerbv Project" for product "Gerbv" and version "2.7.0"		-		Affected
Gerbv Project Search vendor "Gerbv Project"		Gerbv Search vendor "Gerbv Project" for product "Gerbv"				2.7.1 Search vendor "Gerbv Project" for product "Gerbv" and version "2.7.1"		forked_dev		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				36 Search vendor "Fedoraproject" for product "Fedora" and version "36"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				11.0 Search vendor "Debian" for product "Debian Linux" and version "11.0"		-		Affected