Local service interruption via unvalidated perfstat input
Published Dec 23, 2022 · Updated Apr 15, 2025
Improper input validation in IBM AIX 7.1, 7.2, 7.3, and VIOS 3.1 allows local users to interrupt service through the perfstat kernel extension. The extension processes attacker-controlled input without adequate validation, although IBM has not disclosed the affected interface, input field, or resulting failure mode. Non-privileged local access is required, and the documented consequence is limited to availability loss without reported data disclosure or modification.
Summary
What happened
Improper input validation in IBM AIX 7.1, 7.2, 7.3, and VIOS 3.1 allows local users to interrupt service through the perfstat kernel extension. The extension processes attacker-controlled input without adequate validation, although IBM has not disclosed the affected interface, input field, or resulting failure mode. Non-privileged local access is required, and the documented consequence is limited to availability loss without reported data disclosure or modification.
The record
- CVE
- CVE-2022-43848
- Published
- Dec 23, 2022
- Updated
- Apr 15, 2025
- Vendor
- IBM
- Product
- AIX
- Classifications
- CWE-20, T1499
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Dec 23, 2022CVE publishedPublication date reported by the CVE source.
- Apr 15, 2025Record 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=7.1, 7.2, 7.3, VIOS 3.1
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Public exploit references
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Technologies
Your stack
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Your stack
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