Local privilege escalation via unchecked DMA bounds
Published Jun 13, 2024 · Updated Aug 15, 2024
Out-of-bounds write in the Google Android Kernel on supported Pixel devices allows local users to escalate privileges without interaction. The pl330_dma_from_peri_start() routine in fp_spi_dma.c fails to bounds-check a peripheral DMA request before writing beyond the intended buffer. A low-privileged local context is required; successful exploitation can compromise confidentiality and integrity within the device, while availability impact is not reported.
Summary
What happened
Out-of-bounds write in the Google Android Kernel on supported Pixel devices allows local users to escalate privileges without interaction. The pl330_dma_from_peri_start() routine in fp_spi_dma.c fails to bounds-check a peripheral DMA request before writing beyond the intended buffer. A low-privileged local context is required; successful exploitation can compromise confidentiality and integrity within the device, while availability impact is not reported.
The record
- CVE
- CVE-2024-32917
- Published
- Jun 13, 2024
- Updated
- Aug 15, 2024
- Vendor
- Product
- Android Kernel
- Classifications
- CWE-787, T1068
- Attack vector
- local
- Privileges
- Unavailable
Timeline
How it unfolded
- Jun 13, 2024CVE publishedPublication date reported by the CVE source.
- Aug 15, 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_kernel
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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Public exploit references
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Technologies
Your stack
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Your stack
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