Kernel-memory disclosure via out-of-bounds read
Published Sep 8, 2021 · Updated Aug 3, 2024
Out-of-bounds read in the Apple iOS and iPadOS kernel before 14.5 allows local users to read kernel memory through local code. The Kernel component reads beyond an intended boundary because it inadequately validates input; Apple has not disclosed the affected function or input format. Code execution on an affected device is required, and the documented consequence is kernel-memory disclosure rather than modification or service interruption.
Summary
What happened
Out-of-bounds read in the Apple iOS and iPadOS kernel before 14.5 allows local users to read kernel memory through local code. The Kernel component reads beyond an intended boundary because it inadequately validates input; Apple has not disclosed the affected function or input format. Code execution on an affected device is required, and the documented consequence is kernel-memory disclosure rather than modification or service interruption.
The record
- CVE
- CVE-2021-1830
- Published
- Sep 8, 2021
- Updated
- Aug 3, 2024
- Vendor
- Apple
- Product
- iOS and iPadOS
- Classifications
- Unavailable
- Attack vector
- local
- Privileges
- Unavailable
Timeline
How it unfolded
- Sep 8, 2021CVE publishedPublication date reported by the CVE source.
- Aug 3, 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 <14.5
What conditions does exploitation require?
What is affected?
Published CVSS scores
No CVSS assessment is available in this record.
CVSS describes severity. EPSS estimates exploitation probability.
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
No sourced classifications are available.
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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