CVE-2012-3621
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 · uneditedWebKit, as used in Apple iTunes before 10.7, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site, a different vulnerability than other WebKit CVEs listed in APPLE-SA-2012-09-12-1.
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 confidenceMemory corruption vulnerability in WebKit rendering engine, as used in Apple iTunes prior to version 10.7, allows remote code execution or denial of service via malicious crafted websites.
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<= 10.6.3= 4.0.0= 4.0.1= 4.1.0= 4.2.0= 4.5= 4.5.0= 4.6= 4.6.0= 4.7= 4.7.0= 4.7.1<= 6.0.2= 6.0= 6.0.1CVSS 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
- M
- Authentication
- None
- Confidentiality
- Complete
- Integrity
- Complete
- Availability
- Complete
AV:N/AC:M/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 installed iTunes versionOpen iTunes, go to Help > About iTunes to see the version number. Alternatively, check Programs and Features (Windows) or the application's Info.pl file.Affected if The version is 10.6.3 or lower, or matches any of these: 4.0.0, 4.0.1, 4.1.0, 4.2.0, 4.5, 4.5.0, 4.6, 4.6.0, 4.7, 4.7.0, 4.7.1
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Verify WebKit is being usediTunes uses the WebKit engine to render web content in the iTunes Store and embedded browsers. This is internal to iTunes and cannot be disabled.Affected if iTunes is installed and used to browse web content (the vulnerability is in the WebKit component embedded in iTunes)
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Assess web browsing exposureDetermine whether iTunes is used to access the iTunes Store or any web-based content. Check if users have permissions to browse external websites within iTunes.Affected if Users can access untrusted or malicious websites through iTunes, which triggers the WebKit vulnerability
You are affected if iTunes version is 10.6.3 or below, or matches any of the specific affected versions (4.0.0 through 4.7.1), and users can browse web content within iTunes that could contain malicious crafted pages.
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 · scopedUpdate Apple iTunes to version 10.7 or later; restrict or block access to untrusted websites until patch is applied.
iTunes 10.7+ | iOS 6.1+
- Upgrade iTunes to version 10.7 or later (iTunes 10.7 was released September 2012 to address this WebKit vulnerability)
- For iPhone OS (iOS) devices, upgrade to iOS 6.1 or later to receive the security fix for this WebKit memory corruption vulnerability
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation4.0 h
- Testing2.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2012-3621 — 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-2012-3621 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