CVE-2008-1030
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 · uneditedInteger overflow in the CFDataReplaceBytes function in the CFData API in CoreFoundation in Apple Mac OS X before 10.5.3 allows context-dependent attackers to execute arbitrary code or cause a denial of service (crash) via an invalid length argument, which triggers a heap-based buffer overflow.
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 confidenceInteger overflow in CFDataReplaceBytes function in CoreFoundation on Mac OS X before 10.5.3 allows context-dependent attackers to execute arbitrary code via an invalid length argument that triggers a heap-based buffer overflow.
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= 10.4.11= 10.5= 10.5.1= 10.5.2= 10.4.11= 10.5= 10.5.1= 10.5.2CVSS 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
- 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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Check Mac OS X versionRun 'sw_vers' or 'system_profiler SPSoftwareDataType' to retrieve the installed operating system versionAffected if The version displayed is 10.4.11, 10.5, 10.5.1, or 10.5.2 for Mac OS X or Mac OS X Server
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Verify CoreFoundation framework versionCheck the build version of /System/Library/Frameworks/CoreFoundation.framework using 'ls -la' or 'otool -L' to confirm it shipped with the vulnerable OS versionsAffected if The CoreFoundation framework version matches that bundled with the affected OS releases (10.4.11 through 10.5.2)
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Check for crash logs indicating CFData exploitationExamine /Library/Logs/CrashReporter or ~/Library/Logs/CrashReporter for crashes involving CFDataReplaceBytes or CoreFoundation functions with heap overflow signaturesAffected if Crash logs show heap corruption or buffer overflow errors originating from CFData operations
A system is affected if it runs Mac OS X or Mac OS X Server version 10.4.11, 10.5, 10.5.1, or 10.5.2 without the 10.5.3 security update applied.
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 Mac OS X 10.5.3 or later security update to patch the vulnerability in CoreFoundation's CFData API.
Mac OS X 10.5.3 or later / Mac OS X Server 10.5.3 or later
- 1. Back up all critical data on the affected Mac system before making any changes
- 2. Download Mac OS X 10.5.3 or later from Apple (note: these are legacy versions no longer directly available from Apple)
- 3. Install the Mac OS X 10.5.3 update via the standard Apple update mechanism
- 4. Verify the installation was successful by checking System Preferences > About > Version (should show 10.5.3 or later)
- 5. Test critical applications to ensure functionality after the update
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation3.0 h
- Testing4.0 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 $2,752.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2008-1030 — 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-2008-1030 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