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SafariWeb browser · Apple

CVE-2012-3670

HIGH · 9.3 CVSS v2.0 Published 2012-07-25
Fix available
A fix is available. Upgrade to after 5.1.7 or later.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

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 · unedited
WebKit, as used in Apple Safari before 6.0, 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-2012-07-25-1.

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 · moderate confidence

Memory corruption vulnerability in WebKit rendering engine used by Safari versions prior to 6.0 allows remote attackers to execute arbitrary code or cause denial of service via crafted malicious websites. The vulnerability stems from improper memory handling during webpage rendering.

MitigationUpdate Safari to version 6.0 or later to obtain the patched WebKit component. Organizations should deploy the Apple security update APPLE-SA-2012-07-25-1 across all affected systems.

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
SafariWeb browser
Affected:<= 5.1.7= 1.0= 1.0.0= 1.0.0b1= 1.0.0b2= 1.0.1= 1.0.2= 1.0.3= 1.0b1= 1.1= 1.1.0= 1.1.1

CVSS 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 checks

Work through these to decide whether this CVE applies to you.

  1. Check if Safari is installed
    On macOS, open Finder > Applications and look for Safari.app, or run 'ls /Applications | grep -i safari' in Terminal. On Windows, check C:\Program Files\ or C:\Program Files (x86)\ for Safari folder.
    Affected if Safari application is found on the system
  2. Determine installed Safari version
    Open Safari > About Safari, or run '/Applications/Safari.app/Contents/MacOS/Safari -version' in Terminal on macOS. On Windows, right-click Safari.exe > Properties > Details tab for version info.
    Affected if A version number is returned by the version check
  3. Compare version against affected ranges
    Compare the discovered version number against: any version <= 5.1.7, OR exactly matching 1.0, 1.0.0, 1.0.0b1, 1.0.0b2, 1.0.1, 1.0.2, 1.0.3, 1.0b1, 1.1, 1.1.0, or 1.1.1
    Affected if The installed version falls within the <= 5.1.7 range or matches any of the specific versions listed

If Safari is installed and its version is 5.1.7 or lower, or matches one of the specific old versions (1.0 through 1.1.1), the system is affected by this vulnerability.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 · scoped
Upgrade available Upgrade to a release after 5.1.7
Interim mitigation

Update Safari to version 6.0 or later to obtain the patched WebKit component. Organizations should deploy the Apple security update APPLE-SA-2012-07-25-1 across all affected systems.

Recommended fix High confidence

Safari 6.0 or later (included with OS X Mountain Lion 10.8, or available via Software Update for OS X Lion 10.7.3+)

  1. Check current Safari version by selecting Safari > About Safari
  2. If running Safari 5.1.7 or earlier on Mac OS X 10.7.3 or later, upgrade to Safari 6.0 or later via Software Update (Apple menu > Software Update)
  3. For Mac users, Safari 6.0+ is included with OS X Mountain Lion (10.8) or can be obtained via the Mac App Store for OS X Lion 10.7.3+
  4. Windows users running Safari 5.1.7 should note that Safari for Windows was discontinued; consider migrating to an alternative browser or contact Apple for extended support options
Caveat Safari 6.0 requires Mac OS X 10.7.3 (Lion) or later; Safari for Windows was discontinued after version 5.1.7, leaving no direct upgrade path for Windows users

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Safari Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing2.0 h
  • Review / QA1.0 h
9.0 hours of engineering $1,600
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2012-3670 in production — separate from our analysis above.

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What this is

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.

What belongs here
  • 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