Local privilege escalation via thermal use-after-free race
Published Aug 7, 2023 · Updated Oct 23, 2024
Use-after-free in the MediaTek thermal component on affected Android 12 chipsets allows local users to gain elevated privileges. A time-of-check/time-of-use race allows a thermal object to be freed after validation but before the component uses it. Exploitation requires local access with System execution privileges and no user interaction; the published record identifies neither a narrower entry point nor the resulting higher privilege boundary.
Summary
What happened
Use-after-free in the MediaTek thermal component on affected Android 12 chipsets allows local users to gain elevated privileges. A time-of-check/time-of-use race allows a thermal object to be freed after validation but before the component uses it. Exploitation requires local access with System execution privileges and no user interaction; the published record identifies neither a narrower entry point nor the resulting higher privilege boundary.
The record
- CVE
- CVE-2023-20787
- Published
- Aug 7, 2023
- Updated
- Oct 23, 2024
- Vendor
- MediaTek
- Product
- MT6768
- Classifications
- CWE-367, T1404
- Attack vector
- local
- Privileges
- admin
Timeline
How it unfolded
- Aug 7, 2023CVE publishedPublication date reported by the CVE source.
- Oct 23, 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
No CVSS assessment is available in this record.
CVSS describes severity. EPSS estimates exploitation probability.
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.
Weakness, pattern, technique
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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