CVE-2021-40393: Buffer Overflow
First published: Wed Dec 22 2021(Updated: )
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.
Credit: talos-cna@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/gerbv | <=2.7.0-1+deb10u1 | 2.7.0-1+deb10u3 2.7.0-2+deb11u2 2.9.6-1 2.10.0-1 |
| Gerbv | =2.7.0 | |
| Debian GNU/Linux | =9.0 | |
| Debian GNU/Linux | =10.0 | |
| Debian GNU/Linux | =11.0 |
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Reference Links
- https://lists.debian.org/debian-lts-announce/2023/09/msg00040.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/37OSNNO5N5FJZP6ZBYRJMML5HYMJQIX7/
- https://talosintelligence.com/vulnerability_reports/TALOS-2021-1404
- https://www.debian.org/security/2022/dsa-5306
- https://github.com/advisories/GHSA-w67q-2hr6-7cjf
- https://github.com/gerbv/gerbv/commit/4d12b696aed19fbcc115fe83aa7597b7c42ba8d6
- https://security-tracker.debian.org/tracker/CVE-2021-40393
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/37OSNNO5N5FJZP6ZBYRJMML5HYMJQIX7/
Frequently Asked Questions
What is the severity of CVE-2021-40393?
CVE-2021-40393 has been rated as critical due to its potential for arbitrary code execution.
How do I fix CVE-2021-40393?
To mitigate CVE-2021-40393, update Gerbv to version 2.7.0-2+deb11u2 or later.
What software is affected by CVE-2021-40393?
CVE-2021-40393 affects Gerbv versions up to 2.7.0 and Debian GNU/Linux versions 9, 10, and 11.
Can CVE-2021-40393 be exploited remotely?
Yes, an attacker can exploit CVE-2021-40393 by providing a specially-crafted gerber file.
Is there a known workaround for CVE-2021-40393?
There is no official workaround for CVE-2021-40393; patching is the recommended solution.
- collector/security-tracker-debian
- agent/type
- collector/mitre-cve
- source/MITRE
- agent/references
- agent/severity
- agent/weakness
- agent/last-modified-date
- agent/description
- agent/first-publish-date
- agent/event
- agent/source
- agent/author
- collector/nvd-api
- agent/software-canonical-lookup-request
- agent/softwarecombine
- agent/tags
- collector/nvd-index
- package-manager/debian
- vendor/gerbv project
- canonical/gerbv
- version/gerbv/2.7.0
- vendor/debian
- canonical/debian gnu/linux
- version/debian gnu/linux/9.0
- version/debian gnu/linux/10.0
- version/debian gnu/linux/11.0