Remote memory disclosure via CoreBluetooth out-of-bounds read
Published Apr 1, 2020 · Updated Aug 4, 2024
An out-of-bounds read in Apple macOS before Catalina 10.15.3 allows remote attackers to leak memory through CoreBluetooth. CoreBluetooth insufficiently validates attacker-controlled input before reading past a buffer boundary, but Apple has not disclosed the affected function or input format. The attacker needs remote reachability to CoreBluetooth; the published impact is memory disclosure, not code execution or service interruption.
Summary
What happened
An out-of-bounds read in Apple macOS before Catalina 10.15.3 allows remote attackers to leak memory through CoreBluetooth. CoreBluetooth insufficiently validates attacker-controlled input before reading past a buffer boundary, but Apple has not disclosed the affected function or input format. The attacker needs remote reachability to CoreBluetooth; the published impact is memory disclosure, not code execution or service interruption.
The record
- CVE
- CVE-2020-3847
- Published
- Apr 1, 2020
- Updated
- Aug 4, 2024
- Vendor
- Apple
- Product
- macOS
- Classifications
- CWE-20, CWE-125, T1210
- Attack vector
- network
- Privileges
- unauthenticated
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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=unspecified <macOS Catalina 10.15.3
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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