Local information disclosure via incorrect bounds check
Published Nov 18, 2021 · Updated Aug 3, 2024
Out-of-bounds read in MediaTek APUSYS on Android 11 allows local users with System privileges to disclose memory. An incorrect bounds check in the APUSYS component permits a read beyond the intended buffer, although MediaTek has not disclosed the affected function or input field. Exploitation is local, requires System execution privileges, and needs no user interaction; the reported impact is limited to information disclosure.
Summary
What happened
Out-of-bounds read in MediaTek APUSYS on Android 11 allows local users with System privileges to disclose memory. An incorrect bounds check in the APUSYS component permits a read beyond the intended buffer, although MediaTek has not disclosed the affected function or input field. Exploitation is local, requires System execution privileges, and needs no user interaction; the reported impact is limited to information disclosure.
The record
- CVE
- CVE-2021-0666
- Published
- Nov 18, 2021
- Updated
- Aug 3, 2024
- Vendor
- MediaTek
- Product
- MediaTek APUSYS
- Classifications
- CWE-125, T1533
- Attack vector
- local
- Privileges
- admin
Timeline
How it unfolded
- Nov 18, 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 11.0
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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