Code execution via unchecked baseband IPC length
Published Jul 6, 2023 · Updated Nov 20, 2024
Heap out-of-bounds write in Samsung Mobile Devices before SMR Jul-2023 Release 1 allows attackers to execute code via baseband IPC. The BroadcastSmsConfig constructor trusts an IPC length byte and copies four bytes per item into a 0x1b0-byte heap object, allowing a write up to 598 bytes past its end. Reachability requires control of the Exynos baseband runtime or equivalent access to its RIL IPC path, and successful exploitation runs code in Android's radio context.
Summary
What happened
Heap out-of-bounds write in Samsung Mobile Devices before SMR Jul-2023 Release 1 allows attackers to execute code via baseband IPC. The BroadcastSmsConfig constructor trusts an IPC length byte and copies four bytes per item into a 0x1b0-byte heap object, allowing a write up to 598 bytes past its end. Reachability requires control of the Exynos baseband runtime or equivalent access to its RIL IPC path, and successful exploitation runs code in Android's radio context.
The record
- CVE
- CVE-2023-30646
- Published
- Jul 6, 2023
- Updated
- Nov 20, 2024
- Vendor
- Samsung Electronics Co., Ltd.
- Product
- Samsung Mobile Devices
- Classifications
- CWE-787, T1203
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 6, 2023CVE publishedPublication date reported by the CVE source.
- Nov 20, 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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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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