Out-of-bounds access via audio control race
Published Feb 22, 2021 · Updated Aug 4, 2024
Out-of-bounds access in Qualcomm Snapdragon audio firmware allows local users to reach memory outside valid array bounds via a control race. Concurrent access to global audio control elements allows an array index to escape its valid range; Qualcomm has not disclosed the affected function or structure. Low-privileged local execution is required, with no user interaction; published sources do not specify whether the access reads, writes, or crashes.
Summary
What happened
Out-of-bounds access in Qualcomm Snapdragon audio firmware allows local users to reach memory outside valid array bounds via a control race. Concurrent access to global audio control elements allows an array index to escape its valid range; Qualcomm has not disclosed the affected function or structure. Low-privileged local execution is required, with no user interaction; published sources do not specify whether the access reads, writes, or crashes.
The record
- CVE
- CVE-2020-11271
- Published
- Feb 22, 2021
- Updated
- Aug 4, 2024
- Vendor
- Qualcomm
- Product
- Snapdragon
- Classifications
- CWE-129
- Attack vector
- local
- Privileges
- Unavailable
Timeline
How it unfolded
- Feb 22, 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=AQT1000, AR8031, AR8035, AR9380, CSR8811, CSRA6620, CSRA6640, FSM10055, FSM10056, IPQ4018, IPQ4028, IPQ4029, IPQ6000, IPQ6010, IPQ6018, IPQ6028, IPQ8064, IPQ8065, IPQ8068, IPQ8070, IPQ8070A, IPQ8071, IPQ8071A, IPQ8072, IPQ8072A, IPQ8074, IPQ8074A, IPQ8076, IPQ8076A, IPQ8078A, IPQ8173, IPQ8174, PM215, PM3003A, PM4125, PM456, PM6125, PM6150, PM6150A, PM6150L, PM6250, PM6350, PM640A, PM640L, PM640P, PM660, PM660A, PM660L, PM670, PM670L, PM7150A, PM7150L, PM7250, PM7250B, PM7350C, PM8004, PM8008, PM8009, PM8150, PM8150A, PM8150B, PM8150C, PM8150L, PM8250, PM8350, PM8350B, PM8350BH, PM8350BHS, PM8350C, PM855, PM855B, PM855L, PM855P, PM8916, PMC1000H, PMD9655, PMI632, PMK7350, PMK8002, PMK8003, PMK8350, PMM6155AU, PMM8155AU, PMM8195AU, PMM855AU, PMR525, PMR735A, PMR735B, PMX50, PMX55, QAT3514, QAT3516, QAT3518, QAT3519, QAT3522, QAT3550, QAT3555, QAT5515, QAT5516, QAT5522, QAT5533, QAT5568, QBT1500, QBT2000, QCA4020, QCA4024, QCA6174A, QCA6390, QCA6391, QCA6420, QCA6421, QCA6426, QCA6428, QCA6430, Q ...[truncated*]
What conditions does exploitation require?
What is affected?
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.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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