Bug#1017548: minetest: CVE-2022-35978

[Salvatore Bonaccorso]

Source: minetest
Version: 5.5.0+dfsg+~1.9.0mt4+dfsg-1
Severity: grave
Tags: security upstream
Justification: user security hole
X-Debbugs-Cc: carnil at debian.org, Debian Security Team <team at security.debian.org>

Hi,

The following vulnerability was published for minetest, filling it as
grave, but downgrade if you strongly disagree.

CVE-2022-35978[0]:
| Minetest is a free open-source voxel game engine with easy modding and
| game creation. In **single player**, a mod can set a global setting
| that controls the Lua script loaded to display the main menu. The
| script is then loaded as soon as the game session is exited. The Lua
| environment the menu runs in is not sandboxed and can directly
| interfere with the user's system. There are currently no known
| workarounds.


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2022-35978
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-35978
[1] https://github.com/minetest/minetest/security/advisories/GHSA-663q-pcjw-27cc
[2] https://github.com/minetest/minetest/commit/da71e86633d0b27cd02d7aac9fdac625d141ca13

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore