CVE-2014-8840
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 iTunes Store component in Apple iOS before 8.1.3 allows remote attackers to bypass a Safari sandbox protection mechanism by leveraging redirection of an SSL URL to the iTunes Store.
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 confidenceThis is a sandbox bypass vulnerability in iOS versions prior to 8.1.3. Attackers exploit how the iTunes Store component handles redirected SSL URLs to escape Safari's sandbox protection mechanism, potentially allowing execution of arbitrary code or access to protected resources outside the 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<= 8.1.2CVSS 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
- M
- Authentication
- None
- Confidentiality
- Partial
- Integrity
- Partial
- Availability
- Partial
AV:N/AC:M/Au:N/C:P/I:P/A:P
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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Check iOS version installed on the deviceGo to Settings > General > About > Version, or use iTunes to check the iOS version of the connected deviceAffected if The version listed is 8.1.2 or lower (any version from 8.0 through 8.1.2)
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Confirm the device is running iPhone OSVerify the device is an iPhone, iPad, or iPod touch by checking Settings > General > About > Model Name, or check the device physically for Apple mobile device characteristicsAffected if The device is an iPhone, iPad, or iPod touch running the affected iOS version
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Identify if Safari is in active useCheck if Safari is used as the default browser or frequently used by reviewing installed browsers in Settings > Safari > Default Browser, or observe Safari app usageAffected if Safari is set as the default browser or is actively used on the device
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Verify iTunes Store app presenceLocate the iTunes Store app on the device home screen (it may be integrated into the Music or App Store app on newer iOS versions)Affected if The iTunes Store component is present and accessible on the device
The device is affected if it is an iOS device (iPhone, iPad, iPod touch) running iOS version 8.1.2 or lower and has Safari or the iTunes Store component in use.
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 dataUpgrade iOS devices to version 8.1.3 or later, which contains the patch for this vulnerability.
- Consultation2.0 h
- Implementation1.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2014-8840 — 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-2014-8840 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