CVE-2022-42150
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedTinyLab linux-lab v1.1-rc1 and cloud-labv0.8-rc2, v1.1-rc1 are vulnerable to insecure permissions. The default configuration could cause Container Escape.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceTinyLab linux-lab and cloud-lab containers ship with insecure default file permissions in their configuration that allow privilege escalation to host. This could enable an attacker who gains code execution within a container to escape container isolation and access the host filesystem or resources.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data= 0.8= 1.1= 1.1CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Changed
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify TinyLab installationCheck for TinyLab Cloud Lab or Linux Lab installations by searching for their binaries, scripts, or container images on the system. Look for common installation paths like /opt/tinylab, /usr/local/tinylab, or check running containers with 'docker ps -a | grep -i tinylab'Affected if Tinylab Cloud Lab version 0.8 or 1.1, or Tinylab Linux Lab version 1.1 is installed or running
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Determine installed versionIf TinyLab is found, identify its exact version by checking the version file, binary version flag, or container image tag. Common commands: 'tinylab --version', 'linux-lab --version', or 'docker images' to list container image versionsAffected if The installed version matches 0.8 or 1.1 for Cloud Lab, or 1.1 for Linux Lab
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Locate container configuration filesFind configuration files used by TinyLab containers, such as Dockerfiles, docker-compose.yml, or container runtime config files. Search in the TinyLab installation directory and project directories for files like Dockerfile, docker-compose.yaml, or .docker/config.jsonAffected if Configuration files exist in the TinyLab installation directory or associated project directories
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Inspect file permissions on configuration filesList file permissions on all configuration files found using 'ls -la <config_directory>' or 'stat <config_file>'. Look for permissions that allow world writable (o+w), group writable (g+w), or overly permissive ownershipAffected if Configuration files have permissions such as 777, 666, or any setting that grants write access to users other than the owner or designated group
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Check sensitive host path mount permissionsReview container mount configurations in docker-compose files or container run commands. Identify any bind mounts or volume mounts pointing to host paths. Check if these mounted paths or their contents have overly permissive settingsAffected if Host directories are mounted into containers with permissions allowing container processes to modify files outside expected container boundaries
A user is affected if they are running Tinylab Cloud Lab versions 0.8 or 1.1, or Tinylab Linux Lab version 1.1, and their container configuration files or mounted host paths have insecure default permissions that could allow container escape.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataAudit and fix default file permissions in container configurations, apply principle of least privilege, ensure proper user namespace isolation, and review mount options for sensitive host paths.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $6,176.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-42150 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2022-42150 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data