Buffer overflow in Gerbv Project
CVE-2021-40393
An out-of-bounds write vulnerability exists in the RS-274X aperture macro variables handling functionality of Gerbv 2.7.0 and dev (commit b5f1eacd) and the forked version of Gerbv (commit 71493260). A specially-crafted gerber file can lead to code execution. An attacker can provide a malicious file to trigger this vulnerability.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.031 (87.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 87.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.031 · newest: 0.031 · change: 0.000
Affected products
- Gerbv Project — versions 2.7.0
- Debian Linux — versions 9.0, 10.0, 11.0
- Gerbv — versions Gerbv 2.7.0, Gerbv dev (commit b5f1eacd),Gerbv forked dev (commit 71493260)
Weakness classification (CWE)
Public proof-of-concept exploits
References
- talosintelligence.com/vulnerability_reports/TALOS-2021-1404 (Exploit, Third Party Advisory)
- www.debian.org/security/2022/dsa-5306 (vendor-advisory, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.debian.org/debian-lts-announce/2023/09/msg00040.html (mailing-list)
Frequently asked questions
- What is CVE-2021-40393?
- CVE-2021-40393 is a critical-severity vulnerability in Gerbv Project, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.8/10. Published 2021-12-22.
- How severe is CVE-2021-40393?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2021-40393 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.