CVE-2019-10603
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 · uneditedUse after free issue occurs If the real device interface goes down and a route lookup is performed while sending a raw IPv6 message in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables in APQ8053, APQ8096AU, APQ8098, MDM9206, MDM9207C, MDM9607, MDM9640, MDM9650, MSM8917, MSM8937, MSM8996AU, QCN7605, SDA845, SDM630, SDM636, SDM660, SDX20, SXR1130
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 confidenceA use-after-free vulnerability exists in the IPv6 raw socket handling code of Qualcomm Snapdragon chipsets. When the real device interface goes down and a route lookup is performed during raw IPv6 message transmission, the code attempts to access memory that has already been freed, leading to potential memory corruption and possible 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 dataall versionsall versionsall versionsall versionsall versionsall versionsall versionsall 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:3.1/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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Identify the chipset modelCheck the device or system documentation, or run commands like 'cat /proc/cpuinfo' on Linux-based embedded systems, or check bootloader/board identification stringsAffected if The chipset matches one of: Apq8053, Apq8096au, Apq8098, Mdm9206, Mdm9207c, Mdm9607, Mdm9640, or Mdm9650
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Confirm firmware versionQuery the firmware version via manufacturer tools, bootloader info, or system information interfaces (such as 'getprop ro.build.id' on Android or 'cat /sys/firmware/devicetree/base/model' on embedded Linux)Affected if Any firmware version is present on the affected chipset models - all versions are vulnerable
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Identify raw IPv6 socket usageAudit running processes and applications for usage of raw sockets with protocol IPPROTO_RAW or IPPROTO_IPV6, and review application source code or network configuration for raw IPv6 transmissionAffected if Applications or services are sending raw IPv6 packets on the device
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Test interface state change behaviorWhile monitoring system logs (dmesg, /var/log/messages) and possibly running a raw IPv6 sender in a loop, bring down and up network interfaces (ip link set dev <iface> down/up) and observe for crashes, kernel panics, or memory corruption errorsAffected if The system crashes, produces use-after-free kernel errors, or exhibits memory corruption when IPv6 raw sockets are active and an interface transitions to down state
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Check for relevant crashes in logsReview kernel logs, crash dumps, and system logs for symptoms such as 'use-after-free', 'raw socket', 'IPv6', or 'memory corruption' errors, particularly around network interface state changesAffected if Logs contain use-after-free errors or memory corruption traces related to IPv6 raw socket handling
A device is affected if it uses one of the listed Qualcomm chipset models and runs any firmware version while utilizing raw IPv6 sockets, with the vulnerability triggered when network interfaces change state.
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 Qualcomm firmware patch (likely in a security update) to affected devices. Until the patch is available, avoid sending raw IPv6 messages on devices where the interface may go down, or implement network monitoring to detect interface state changes.
- 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-2019-10603 — 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-2019-10603 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
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