CVE-2017-11047
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 · uneditedIn Android for MSM, Firefox OS for MSM, QRD Android, with all Android releases from CAF using the Linux kernel, in a graphics driver ioctl handler, the lack of copy_from_user() function calls may result in writes to kernel memory.
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 confidenceIn the Android graphics driver ioctl handler within CAF Linux kernels, missing copy_from_user() function calls allow potential writes to arbitrary kernel memory locations. This local privilege escalation vulnerability exists in the Qualcomm MSM graphics subsystem.
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 dataall versionsCVSS 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
- Local
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:L/AC:L/PR:L/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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Confirm Android OS is in useVerify the device is running Google Android OS (check /system/build.prop or Settings > About Phone > Android version)Affected if The device runs any version of Google Android, as all versions are affected per the CVE scope
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Identify the graphics subsystemCheck if the device uses Qualcomm MSM graphics driver - examine kernel config (CONFIG_MSM_KGSL) or check /proc/config.gz, or review kernel boot logs for 'kgsl' or 'msm_kgsl' driver loadingAffected if The device has the Qualcomm MSM (Qualcomm Graphics Processing Unit) graphics subsystem present in the kernel
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Check kernel source and patch statusReview the kernel version string (uname -a) and check if it originates from CAF (Code Aurora Forum) or vendor kernel sources. Examine whether the specific ioctl handler in the graphics driver (drivers/gpu/msm/) includes proper copy_from_user() validation for ioctl callsAffected if The kernel is a CAF-based kernel or vendor-modified CAF kernel missing the copy_from_user() validation fix in the graphics driver ioctl path
If the device runs Google Android with the Qualcomm MSM graphics subsystem and the kernel lacks the copy_from_user() validation fix in the graphics driver ioctl handler, the device is vulnerable to CVE-2017-11047.
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 dataApply the vendor patch for CVE-2017-11047 which adds proper copy_from_user() validation to the graphics driver ioctl handler, or update to a patched CAF kernel release.
- Consultation4.0 h
- Implementation8.0 h
- Testing12.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2017-11047 — 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-2017-11047 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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- 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
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