CVE-2021-40401

Name	CVE-2021-40401
Description	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.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
References	DLA-3210-1, DSA-5306-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
gerbv (PTS)	buster	2.7.0-1+deb10u1	vulnerable
	buster (security)	2.7.0-1+deb10u2	fixed
	bullseye, bullseye (security)	2.7.0-2+deb11u2	fixed
	bookworm, sid	2.9.6-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Origin
gerbv	source	buster	2.7.0-1+deb10u2	DLA-3210-1
gerbv	source	bullseye	2.7.0-2+deb11u2	DSA-5306-1
gerbv	source	(unstable)	2.9.2-1

Notes

https://talosintelligence.com/vulnerability_reports/TALOS-2021-1415
Fixed by: https://github.com/gerbv/gerbv/commit/68ee18945bcf68ff964c42f12af79c5c0e2f4069 (v2.9.0-rc.1)
https://github.com/gerbv/gerbv/issues/81