Local privilege escalation via unchecked driver write
Published Feb 26, 2021 · Updated Aug 3, 2024
An out-of-bounds write in the Android 10 and 11 performance driver allows local users with System execution privileges to escalate privileges. The driver fails to bounds-check an unspecified input before writing, but the public record does not identify the function, buffer, or request that reaches the write. Exploitation requires local access with System execution privileges and no user interaction; the reported consequence is privilege escalation.
Summary
What happened
An out-of-bounds write in the Android 10 and 11 performance driver allows local users with System execution privileges to escalate privileges. The driver fails to bounds-check an unspecified input before writing, but the public record does not identify the function, buffer, or request that reaches the write. Exploitation requires local access with System execution privileges and no user interaction; the reported consequence is privilege escalation.
The record
- CVE
- CVE-2021-0405
- Published
- Feb 26, 2021
- Updated
- Aug 3, 2024
- Vendor
- Google Cloud
- Product
- Android
- Classifications
- CWE-787, T1626
- Attack vector
- local
- Privileges
- admin
Timeline
How it unfolded
- Feb 26, 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=Android-10, Android-11
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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