CVE-2014-4495
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 · uneditedThe kernel in Apple iOS before 8.1.3, Apple OS X before 10.10.2, and Apple TV before 7.0.3 does not enforce the read-only attribute of a shared memory segment during use of a custom cache mode, which allows attackers to bypass intended access restrictions via a crafted app.
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 confidenceKernel vulnerability in iOS, OS X, and Apple TV where the read-only attribute of shared memory segments is not enforced when using a custom cache mode, allowing a crafted application to bypass intended access restrictions.
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<= 8.1.2<= 10.10.1<= 7.0.1CVSS 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
- Authentication
- None
- Confidentiality
- Complete
- Integrity
- Complete
- Availability
- Complete
AV:N/AC:L/Au:N/C:C/I:C/A:C
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 the Apple product running in your environmentDetermine whether the system is running iOS, OS X (macOS), or Apple TV. For Macs, click the Apple menu and select 'About This Mac'. For iOS, go to Settings > General > About. For Apple TV, go to Settings > General > About.Affected if N/A - this is the initial identification step
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Check the installed iOS versionOn iOS devices, go to Settings > General > About and look at the 'Version' field. Compare this version number to 8.1.2.Affected if The installed iOS version is 8.1.2 or earlier
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Check the installed OS X versionOn Mac computers, click the Apple menu > About This Mac. The version number will be displayed (for example, 10.10.1). Compare this to 10.10.1.Affected if The installed OS X version is 10.10.1 or earlier (10.10.x versions at or below 10.10.1)
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Check the installed Apple TV versionOn Apple TV, go to Settings > General > About and note the version number. Compare this to 7.0.1.Affected if The installed Apple TV version is 7.0.1 or earlier
If the installed iOS is 8.1.2 or earlier, OS X is 10.10.1 or earlier, or Apple TV is 7.0.1 or earlier, the environment is affected by this vulnerability.
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 · scopedApply the vendor-supplied updates: iOS 8.1.3 or later, OS X 10.10.2 or later, or Apple TV 7.0.3 or later.
iOS 8.1.3, Mac OS X 10.10.2, or Apple TV 7.0.3 depending on device
- For iOS devices: Go to Settings > General > Software Update and install iOS 8.1.3 or later
- For Mac OS X: Go to Apple Menu > Software Update and install OS X 10.10.2 or later
- For Apple TV: Go to Settings > General > Software Update and install tvOS 7.0.3 or later
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation1.0 h
- Implementation2.0 h
- Testing2.0 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 $1,664.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2014-4495 — 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-2014-4495 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