Local privilege escalation via transfer use-after-free race
Published Sep 13, 2022 · Updated Aug 3, 2024
Use-after-free in the PowerVR-GPU component on Android SoC devices allows local users to escalate privileges without user interaction. A race in PVRSRVRGXSubmitTransferKM in rgxtransfer.c permits a transfer object to be freed while it remains in use. A low-privileged local user must win the race; successful exploitation grants elevated privileges and can compromise device data and operation.
Summary
What happened
Use-after-free in the PowerVR-GPU component on Android SoC devices allows local users to escalate privileges without user interaction. A race in PVRSRVRGXSubmitTransferKM in rgxtransfer.c permits a transfer object to be freed while it remains in use. A low-privileged local user must win the race; successful exploitation grants elevated privileges and can compromise device data and operation.
The record
- CVE
- CVE-2021-0697
- Published
- Sep 13, 2022
- Updated
- Aug 3, 2024
- Vendor
- Imagination Technologies
- Product
- PowerVR GPU
- Classifications
- CWE-362, CWE-416, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Sep 13, 2022CVE 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?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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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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