Kernel-memory disclosure or system crash via Bluetooth input
Published Apr 1, 2020 · Updated Aug 4, 2024
Out-of-bounds read in the Bluetooth component of Apple macOS before 10.15.4 allows local users to read kernel memory or crash the system. The Bluetooth HCI component reads an unspecified input beyond its buffer because the affected path does not validate bounds; Apple has not disclosed the parser or function. Local access is required, and the documented consequence is limited to kernel-memory disclosure or unexpected system termination.
Summary
What happened
Out-of-bounds read in the Bluetooth component of Apple macOS before 10.15.4 allows local users to read kernel memory or crash the system. The Bluetooth HCI component reads an unspecified input beyond its buffer because the affected path does not validate bounds; Apple has not disclosed the parser or function. Local access is required, and the documented consequence is limited to kernel-memory disclosure or unexpected system termination.
The record
- CVE
- CVE-2020-3912
- Published
- Apr 1, 2020
- Updated
- Aug 4, 2024
- Vendor
- Apple
- Product
- macOS
- Classifications
- CWE-125
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Apr 1, 2020CVE 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=unspecified <macOS Catalina 10.15.4
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.
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Technologies
Your stack
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Your stack
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