minetest: Protection Mechanism Failure
CVE-2022-35978 is a critical-severity protection mechanism failure vulnerability in minetest, with a CVSS 3.1 base score of 10.0 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected minetest versions: <= 5.5.1. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 3.08% chance of exploitation within 30 days, higher than 88% of scored CVEs.
Critical severity: a successful attack would have severe impact.
What to do
- Check which version of minetest you run against the affected versions below, and install the vendor's latest release.
- Read the advisory on dev.minetest.net for workarounds and exact fixed builds.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- ChangedThe attack can reach beyond the vulnerable component into other systems.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 7.7 | High | CNA (github.com) |
| CVSS 3.1 | 10.0 | Critical | NVD |
Official description
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.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Protection Mechanism Failure
The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product.
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Advisories
- dev.minetest.net/Changelog#5.5.0_.E2.86.92_5.6.0Release Notes
- github.com/minetest/minetest/security/advisories/GHSA-663q-pcjw-27ccThird Party Advisory
Patches and release notes
- github.com/minetest/minetest/commit/da71e86633d0b27cd02d7aac9fdac625d141ca13Third Party Advisory
Other vulnerabilities in minetest
- 10.0 Critical severity
Recent Protection Mechanism Failure vulnerabilities
- 7.8 High severity
- 9.8 Critical severity
- 9.9 Critical severity
- 10.0 High severity
Oracle Java SE Unspecified Exploited
- 5.0 Medium severity
Oracle JRE Sandbox Bypass Exploited
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