Kernel-memory disclosure via uninitialized Wi-Fi data
Published Jun 9, 2020 · Updated Aug 4, 2024
Wi-Fi information disclosure in macOS Catalina 10.15.4, Mojave 10.14.6, and High Sierra 10.13.6 allows local users to read kernel memory. The Wi-Fi component fails to initialize memory before its contents become readable, exposing stale kernel data to the requesting local context. Exploitation requires local code execution; the disclosed consequence is reading kernel memory, not modifying it or gaining kernel execution.
Summary
What happened
Wi-Fi information disclosure in macOS Catalina 10.15.4, Mojave 10.14.6, and High Sierra 10.13.6 allows local users to read kernel memory. The Wi-Fi component fails to initialize memory before its contents become readable, exposing stale kernel data to the requesting local context. Exploitation requires local code execution; the disclosed consequence is reading kernel memory, not modifying it or gaining kernel execution.
The record
- CVE
- CVE-2020-9834
- Published
- Jun 9, 2020
- Updated
- Aug 4, 2024
- Vendor
- Apple
- Product
- macOS
- Classifications
- CWE-787
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 9, 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 10.15.5
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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