CVE-2024-21462
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 · uneditedTransient DOS while loading the TA ELF file.
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 confidenceA transient denial of service vulnerability exists in the Trusted Application (TA) ELF file loader within the Trusted Execution Environment (TEE). When loading a specially crafted or malformed TA ELF file, the loader can cause the TEE to become unresponsive or crash temporarily. The vulnerability occurs during the ELF parsing and loading phase, likely due to improper error handling or resource management when processing certain ELF structures.
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
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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 Qualcomm firmware product in useCheck the system firmware or modem firmware version. On embedded systems, this is often available via AT commands (e.g., AT+GMR), bootloader logs, or /proc/version. For networking gear, check the device specifications or management interface.Affected if The firmware product matches any of these: Qualcomm 315 5g Iot Modem, Qualcomm 9205 Lte Modem, Qualcomm Aqt1000, Qualcomm Ar8031, Qualcomm Ar8035, Qualcomm C V2x 9150, Qualcomm Csr8811, or Qualcomm Csra6620.
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Verify TEE is enabled and operationalCheck if the Trusted Execution Environment is active on the system. This may be visible in kernel logs (dmesg | grep -i tee), via tee-manager status, or by checking for /dev/tz* or /dev/tee* device nodes.Affected if The TEE is present and running, making the ELF loader component active.
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Confirm TA ELF loading capability existsDetermine if the system supports loading Trusted Application ELF files. This is typically a feature of the TEE implementation. Check if there are TA loading interfaces, libraries (like libtee), or TA storage directories present.Affected if The system can load TA ELF files into the TEE.
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Monitor for TEE crashes or unresponsivenessReview system logs, crash dumps, or watchdog reports for instances where the TEE became unresponsive or crashed. Look for logs containing TEE error messages, panic entries, or unexpected TEE resets coinciding with TA loading activity.Affected if The TEE has exhibited crashes, hangs, or unresponsiveness, especially after loading or attempting to load TA ELF files.
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Inspect TA ELF loading operationsIf logging is available, examine logs around the time of any TEE incidents to see if TA ELF loading was in progress. Check for entries indicating loading of unsigned, modified, or third-party TA files.Affected if A TA ELF file was being loaded into the TEE at the time of any observed TEE issues.
You are affected if your device runs any of the listed Qualcomm firmware products, has an active TEE with TA loading capability, and has experienced TEE crashes or unresponsiveness during TA ELF file loading operations.
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 dataImplement robust error handling and resource validation in the TA ELF loader to gracefully handle malformed files without causing TEE unavailability; apply any available security patches from the TEE/OS vendor; consider adding resource limits and timeouts for ELF loading operations.
- Consultation4.0 h
- Implementation12.0 h
- Testing8.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $7,808.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-21462 — 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-2024-21462 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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