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.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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. (CVE-2021-40394)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote Debian 10 host has a package installed that is affected by multiple vulnerabilities as referenced in the dla-3593 advisory.

    - -------------------------------------------------------------------------     Debian LTS Advisory DLA-3593-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                          Adrian Bunk     September 30, 2023                            https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : gerbv     Version        : 2.7.0-1+deb10u3     CVE ID         : CVE-2021-40393 CVE-2021-40394 CVE-2023-4508     Debian Bug     : 1050560

    Several vulnerabilities were fixed in gerbv, a viewer for the Gerber     format for printed circuit board (PCB) design.

    CVE-2021-40393

        RS-274X format aperture macro variables out-of-bounds write

    CVE-2021-40394

        RS-274X aperture macro outline primitive integer overflow

    CVE-2023-4508

        Out-of-bounds memory access when referencing external files

    For Debian 10 buster, these problems have been fixed in version     2.7.0-1+deb10u3.

    We recommend that you upgrade your gerbv packages.

    For the detailed security status of gerbv please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/gerbv

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Ubuntu 16.04 ESM / 18.04 ESM / 20.04 LTS / 22.04 ESM host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6209-1 advisory.

    Claudio Bozzato discovered that Gerbv incorrectly handled certain Gerber files. An attacker could possibly     use this issue to crash Gerbv (resulting in a denial of service), 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. (CVE-2021-40391,     CVE-2021-40394)

    Claudio Bozzato discovered that Gerbv incorrectly handled certain Gerber files. An attacker could possibly     use this issue to disclose information, crash Gerbv (resulting in a denial of service), 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. (CVE-2021-40393)

    Claudio Bozzato discovered that Gerbv incorrectly handled certain Gerber files. An attacker could possibly     use this issue to disclose information. (CVE-2021-40400, CVE-2021-40403)

    Claudio Bozzato discovered that Gerbv incorrectly handled certain Gerber files. An attacker could possibly     use this issue to disclose information, crash Gerbv (resulting in a denial of service), or execute     arbitrary code. (CVE-2021-40401)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Debian 11 host has a package installed that is affected by multiple vulnerabilities as referenced in the dsa-5306 advisory.

  - 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. (CVE-2021-40393, CVE-2021-40394)

  - 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. (CVE-2021-40401)

  - An information disclosure vulnerability exists in the pick-and-place rotation parsing functionality of     Gerbv 2.7.0 and dev (commit b5f1eacd), and Gerbv forked 2.8.0. A specially-crafted pick-and-place file can     exploit the missing initialization of a structure to leak memory contents. An attacker can provide a     malicious file to trigger this vulnerability. (CVE-2021-40403)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
259372	Linux Distros Unpatched Vulnerability : CVE-2021-40394	Nessus	Misc.	critical
182404	Debian dla-3593 : gerbv - security update	Nessus	Debian Local Security Checks	critical
178107	Ubuntu 16.04 ESM / 18.04 ESM / 20.04 LTS / 22.04 ESM : Gerbv vulnerabilities (USN-6209-1)	Nessus	Ubuntu Local Security Checks	critical
169342	Debian DSA-5306-1 : gerbv - security update	Nessus	Debian Local Security Checks	critical

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