Local privilege escalation via thermal use-after-free
Published Aug 7, 2023 · Updated Oct 21, 2024
Privilege escalation in MediaTek thermal components on affected Android 12 chipsets allows local users to obtain elevated privileges. A time-of-check time-of-use race permits a thermal object to be freed while it remains in use, producing a use-after-free condition. Exploitation requires existing System execution privileges on the device but no user interaction; MediaTek has not disclosed the specific function or race trigger.
Summary
What happened
Privilege escalation in MediaTek thermal components on affected Android 12 chipsets allows local users to obtain elevated privileges. A time-of-check time-of-use race permits a thermal object to be freed while it remains in use, producing a use-after-free condition. Exploitation requires existing System execution privileges on the device but no user interaction; MediaTek has not disclosed the specific function or race trigger.
The record
- CVE
- CVE-2023-20788
- Published
- Aug 7, 2023
- Updated
- Oct 21, 2024
- Vendor
- MediaTek
- Product
- MT6768
- Classifications
- CWE-416, CWE-367, T1404
- Attack vector
- local
- Privileges
- admin
Timeline
How it unfolded
- Aug 7, 2023CVE publishedPublication date reported by the CVE source.
- Oct 21, 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 12.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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