Local memory corruption via unchecked subsample length
Published Jun 22, 2020 · Updated Aug 5, 2024
A buffer overflow in TrustZone on affected Qualcomm Snapdragon platforms allows local users to corrupt memory via malformed subsample data. A closed-source component copies data using an out-of-range subsample length without first validating that the destination buffer is large enough. Low-privileged local access is required; successful exploitation can disclose or alter protected data or interrupt execution in the affected context.
Summary
What happened
A buffer overflow in TrustZone on affected Qualcomm Snapdragon platforms allows local users to corrupt memory via malformed subsample data. A closed-source component copies data using an out-of-range subsample length without first validating that the destination buffer is large enough. Low-privileged local access is required; successful exploitation can disclose or alter protected data or interrupt execution in the affected context.
The record
- CVE
- CVE-2019-14076
- Published
- Jun 22, 2020
- Updated
- Aug 5, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-120, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 22, 2020CVE publishedPublication date reported by the CVE source.
- Aug 5, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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