A DOSBox security update has been released for Ubuntu Linux 18.04 LTS.

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Ubuntu Security Notice USN-5356-1
March 30, 2022

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

- Ubuntu 18.04 LTS

Summary:

Several security issues were fixed in DOSBox.

Software Description:
- dosbox: An Open Source DOS emulator to run old DOS games.

Details:

Alexandre Bartel discovered that DOSBox incorrectly handled
long lines in certain files. An attacker could possibly use
this issue to execute arbitrary code. (CVE-2019-7165)

Alexandre Bartel discovered that DOSBox incorrectly performed
access control over certain directories. An attacker could
possibly use this issue to execute arbitrary code.
(CVE-2019-12594)

Update instructions:

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

Ubuntu 18.04 LTS:
dosbox 0.74-4.3ubuntu0.1

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

References:
https://ubuntu.com/security/notices/USN-5356-1
CVE-2019-12594, CVE-2019-7165

Package Information:
https://launchpad.net/ubuntu/+source/dosbox/0.74-4.3ubuntu0.1