==========================================================================
Ubuntu Security Notice USN-6209-1
July 07, 2023

Gerbv vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 22.04 LTS (Available with Ubuntu Pro)
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS (Available with Ubuntu Pro)
- Ubuntu 16.04 LTS (Available with Ubuntu Pro)
- Ubuntu 14.04 LTS (Available with Ubuntu Pro)

Summary:

Gerbv could be made to crash or run programs as your login if it
opened a specially crafted file.

Software Description:
- gerbv: Gerber file viewer for PCB design

Details:

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)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 22.04 LTS (Available with Ubuntu Pro):
   gerbv                           2.8.2-1ubuntu0.1~esm1

Ubuntu 20.04 LTS:
   gerbv                           2.7.0-1ubuntu0.1

Ubuntu 18.04 LTS (Available with Ubuntu Pro):
   gerbv                           2.6.1-3ubuntu0.1~esm1

Ubuntu 16.04 LTS (Available with Ubuntu Pro):
   gerbv                           2.6.0-1ubuntu0.16.04.1~esm1

Ubuntu 14.04 LTS (Available with Ubuntu Pro):
   gerbv                           2.6.0-1ubuntu0.14.04.1~esm1

In general, a standard system update will make all the necessary changes.

References:
   https://ubuntu.com/security/notices/USN-6209-1
   CVE-2021-40391, CVE-2021-40393, CVE-2021-40394, CVE-2021-40400,
   CVE-2021-40401, CVE-2021-40403

Package Information:
   https://launchpad.net/ubuntu/+source/gerbv/2.7.0-1ubuntu0.1