Local privilege escalation via imgsensor bounds check
Published May 3, 2022 · Updated Aug 3, 2024
Improper input validation in MediaTek Chipset imgsensor on Android 11.0 and 12.0 allows local users to gain System privileges via crafted input. The imgsensor component performs an incorrect bounds check before a write, permitting an out-of-bounds write to alter protected memory. Exploitation requires local access with System-level execution privileges and no user interaction; the resulting impact is elevation of privilege with potential confidentiality, integrity, and availability loss.
Summary
What happened
Improper input validation in MediaTek Chipset imgsensor on Android 11.0 and 12.0 allows local users to gain System privileges via crafted input. The imgsensor component performs an incorrect bounds check before a write, permitting an out-of-bounds write to alter protected memory. Exploitation requires local access with System-level execution privileges and no user interaction; the resulting impact is elevation of privilege with potential confidentiality, integrity, and availability loss.
The record
- CVE
- CVE-2022-20094
- Published
- May 3, 2022
- Updated
- Aug 3, 2024
- Vendor
- MediaTek
- Product
- MediaTek Chipset
- Classifications
- CWE-787, T1068
- Attack vector
- local
- Privileges
- admin
Timeline
How it unfolded
- May 3, 2022CVE 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=Android 11.0, 12.0
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.
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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