CVE-2023-42867
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 · uneditedThis issue was addressed with improved validation of the process entitlement and Team ID. This issue is fixed in GarageBand 10.4.9. An app may be able to gain root privileges.
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 · high confidenceGarageBand versions before 10.4.9 contain a validation flaw in process entitlement and Team ID checks that can be exploited by a malicious application to escalate privileges to root. The vulnerability stems from inadequate validation during the entitlement verification process, allowing privilege escalation beyond the app's normal sandbox.
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< 10.4.9CVSS 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
- Local
- Complexity
- Low
- Privileges
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/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 installed GarageBand versionOpen Finder, go to /Applications/, locate GarageBand, right-click and choose 'Get Info', or run: defaults read /Applications/GarageBand.app/Contents/Info.plist CFBundleShortVersionStringAffected if The displayed version is lower than 10.4.9 (e.g., 10.4.8, 10.4.7, etc.)
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Confirm version via command lineRun: /usr/bin/defaults read /Applications/GarageBand.app/Contents/Info.plist CFBundleShortVersionStringAffected if The command outputs a version string less than 10.4.9 (compare numerically or alphabetically)
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Verify GarageBand executable existsCheck that /Applications/GarageBand.app exists and is executable: ls -la /Applications/GarageBand.app/Contents/MacOS/GarageBandAffected if The application bundle is present and the executable exists, combined with a version below 10.4.9 from the previous checks
You are affected if GarageBand is installed and its version is earlier than 10.4.9, as the entitlement validation flaw only exists in those versions.
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.
dbcve · scoped10.4.9
Update GarageBand to version 10.4.9 or later via the Mac App Store. This version includes improved validation of process entitlements and Team ID to prevent unauthorized privilege escalation.
GarageBand 10.4.9
- Open the Mac App Store on your Mac
- Click on the 'Updates' tab in the sidebar
- Look for GarageBand in the list of available updates
- Click 'Update' next to GarageBand to download and install version 10.4.9
- Alternatively, go to Apple menu > System Settings > General > Software Update to check for updates
- Restart your Mac if prompted to complete the installation
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation1.0 h
- Testing1.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,456.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-42867 — 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-2023-42867 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