Local privilege escalation via unchecked buffer write
Published Jun 6, 2023 · Updated Jan 7, 2025
Out-of-bounds write in MediaTek keymanage on affected chipsets with Android 12.0 or 13.0 allows local users to escalate privileges. The keymanage component writes beyond an intended buffer because the write path omits a bounds check; the exact input field is undisclosed. Exploitation requires existing System execution privileges and no user interaction; MediaTek does not specify the post-escalation authority.
Summary
What happened
Out-of-bounds write in MediaTek keymanage on affected chipsets with Android 12.0 or 13.0 allows local users to escalate privileges. The keymanage component writes beyond an intended buffer because the write path omits a bounds check; the exact input field is undisclosed. Exploitation requires existing System execution privileges and no user interaction; MediaTek does not specify the post-escalation authority.
The record
- CVE
- CVE-2023-20752
- Published
- Jun 6, 2023
- Updated
- Jan 7, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-787, T1404
- Attack vector
- local
- Privileges
- admin
Timeline
How it unfolded
- Jun 6, 2023CVE publishedPublication date reported by the CVE source.
- Jan 7, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What is affected?
Affected products and versions are unavailable in this record.
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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