Protected-memory read and write via unchecked EL2 input
Published Apr 7, 2021 · Updated Aug 4, 2024
Improper input validation in Qualcomm Snapdragon access-control drivers allows attackers to read and write unintended memory from non-secure EL2. The driver fails to validate input supplied by non-secure EL2 before performing the requested memory-access operation. Code already executing at that exception level can cross the intended access boundary, exposing or modifying protected memory and destabilizing the device.
Summary
What happened
Improper input validation in Qualcomm Snapdragon access-control drivers allows attackers to read and write unintended memory from non-secure EL2. The driver fails to validate input supplied by non-secure EL2 before performing the requested memory-access operation. Code already executing at that exception level can cross the intended access boundary, exposing or modifying protected memory and destabilizing the device.
The record
- CVE
- CVE-2020-11245
- Published
- Apr 7, 2021
- Updated
- Aug 4, 2024
- Vendor
- Qualcomm
- Product
- Snapdragon
- Classifications
- CWE-190
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 7, 2021CVE publishedPublication date reported by the CVE source.
- Aug 4, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=AQT1000, AR8035, PM3003A, PM4125, PM4250, PM6125, PM6150, PM6150A, PM6150L, PM6350, PM640A, PM640L, PM640P, PM7150A, PM7150L, PM7250, PM7250B, PM8004, PM8005, PM8008, PM8009, PM8150A, PM8150B, PM8150C, PM8150L, PM8250, PM8350, PM855, PM855B, PM855L, PM855P, PM8998, PMD9655, PMI632, PMI8998, PMK8002, PMK8003, PMM8195AU, PMM855AU, PMR525, PMR735A, PMR735B, PMX24, PMX55, QAT3516, QAT3518, QAT3519, QAT3522, QAT3550, QAT3555, QAT5515, QAT5516, QAT5522, QAT5533, QBT1500, QBT2000, QCA6390, QCA6391, QCA6420, QCA6421, QCA6426, QCA6430, QCA6431, QCA6436, QCA6574AU, QCA6595, QCA9984, QCM2290, QCM4290, QCS2290, QCS405, QCS4290, QDM2301, QDM2305, QDM2307, QDM2308, QDM2310, QDM3301, QDM5620, QDM5621, QDM5650, QDM5652, QDM5670, QDM5671, QDM5677, QDM5679, QET4101, QET5100, QET6100, QET6105, QET6110, QFS2530, QFS2580, QLN4642, QLN4650, QLN5020, QLN5030, QLN5040, QPA2625, QPA4360, QPA5460, QPA5580, QPA5581, QPA6560, QPA8673, QPA8686, QPA8801, QPA8802, QPA8803, QPA8821, QPA8842, QPM4650, QPM5620, QPM5621, QPM565 ...[truncated*]
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
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Technologies
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Your stack
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