Local privilege escalation via unchecked driver bounds
Published Jun 11, 2021 · Updated Aug 3, 2024
Android memory management driver in Android SoC builds allows local users to gain elevated privileges through an out-of-bounds write. The driver omits a bounds check before writing attacker-influenced data, permitting memory corruption in the MediaTek memory-management path. Exploitation requires local code execution but no additional privileges or user interaction; impact can include full confidentiality, integrity, and availability loss.
Summary
What happened
Android memory management driver in Android SoC builds allows local users to gain elevated privileges through an out-of-bounds write. The driver omits a bounds check before writing attacker-influenced data, permitting memory corruption in the MediaTek memory-management path. Exploitation requires local code execution but no additional privileges or user interaction; impact can include full confidentiality, integrity, and availability loss.
The record
- CVE
- CVE-2021-0493
- Published
- Jun 11, 2021
- Updated
- Aug 3, 2024
- Vendor
- Google Cloud
- Product
- Android
- Classifications
- CWE-787, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 11, 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?
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- Affected versionversion=Android SoC
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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