CVE-2015-7292
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 · uneditedStack-based buffer overflow in the havok_write function in drivers/staging/havok/havok.c in Amazon Fire OS before 2016-01-15 allows attackers to cause a denial of service (panic) or possibly have unspecified other impact via a long string to /dev/hv.
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 confidenceStack-based buffer overflow in the havok_write function in Amazon Fire OS kernel driver (drivers/staging/havok/havok.c). Attackers can send a long string to /dev/hv that overflows a stack buffer, causing kernel panic (denial of service) or potentially arbitrary code execution.
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<= 5.0CVSS 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
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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 operating systemCheck if the system is running Amazon Fire OS by examining /system/build.prop for the 'ro.build.fingerprint' or 'ro.product.name' properties, or run 'getprop ro.build.fingerprint'Affected if The OS is Amazon Fire OS and the version is 5.0 or lower
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Determine the Amazon Fire OS versionRun 'getprop ro.build.version.release' or check the 'ro.fireos.version' property in /system/build.prop to get the exact Fire OS version numberAffected if The version is 5.0 or any version <= 5.0 (e.g., 4.0, 3.0, etc.)
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Verify the havok kernel driver existsCheck if the file /system/lib/modules/havok.ko exists, or look for 'havok' in /proc/modules if the module is loaded, or check for 'havok' in the kernel configuration at /proc/config.gzAffected if The havok driver module is present on the system
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Check if the /dev/hv device node existsRun 'ls -la /dev/hv' to verify if the hv device node exists, which is required for the attack vectorAffected if The /dev/hv device node is present and accessible
The system is affected if it is Amazon Fire OS version 5.0 or lower AND the vulnerable havok driver with /dev/hv device is present on the device.
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 Amazon Fire OS to a version released after 2016-01-15, which contains the vendor patch for this vulnerability.
Latest available Fire OS version (post-January 2016 release)
- 1. Identify the current Fire OS version on the device by checking Settings > Device Options > About Fire TV
- 2. Upgrade the Fire TV device to the latest available Fire OS version
- 3. If automatic updates are enabled, ensure the device is connected to the internet and powered on to receive the update
- 4. Verify the device is running a version released after January 15, 2016, which contains the security fix for the havok_write buffer overflow vulnerability
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation1.0 h
- Testing1.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2015-7292 — 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-2015-7292 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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- Version or environment caveats, and links to real fixes
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