Vulnerability · Published Apr 14, 2022 · Assigned by talos

CVE-2021-40400

Critical 9.3

In plain English

A critical-severity memory corruption in Gerbv from Gerbv. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.3% (higher than 70% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.0)9.3Critical

Exploit odds (30 days)1.3%top 29.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

An out-of-bounds read vulnerability exists in the RS-274X aperture macro outline primitive functionality of Gerbv 2.7.0 and dev (commit b5f1eacd) and the forked version of Gerbv (commit d7f42a9a). A specially-crafted Gerber file can lead to information disclosure. An attacker can provide a malicious file to trigger this vulnerability.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Debian:12	gerbv	2.9.2-1	DEBIAN-CVE-2021-40400
Debian:13	gerbv	2.9.2-1	DEBIAN-CVE-2021-40400

Affected products (as reported)

Vendor	Product	Versions
Gerbv	Gerbv	2.7.0dev (commit b5f1eacd)
Gerbv	Gerbv forked	dev (commit d7f42a9a)

Weakness: CWE-119 · Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:H

References

https://talosintelligence.com/vulnerability_reports/TALOS-2021-1413 x_refsource_MISC