Local denial of service via helper_wfe_arm write
Published Jul 20, 2021 · Updated Aug 4, 2024
Out-of-bounds write in Unicorn Engine 1.0.2 allows local users to cause a service interrupt via the helper_wfe_arm ARM emulation helper. The helper performs an out-of-bounds memory write while processing ARM WFE behavior, corrupting emulator state and potentially crashing the hosting process. Exploitation requires local low-privilege access to execute code through Unicorn; no remote exposure or confidentiality impact is documented.
Summary
What happened
Out-of-bounds write in Unicorn Engine 1.0.2 allows local users to cause a service interrupt via the helper_wfe_arm ARM emulation helper. The helper performs an out-of-bounds memory write while processing ARM WFE behavior, corrupting emulator state and potentially crashing the hosting process. Exploitation requires local low-privilege access to execute code through Unicorn; no remote exposure or confidentiality impact is documented.
The record
- CVE
- CVE-2020-36431
- Published
- Jul 20, 2021
- Updated
- Aug 4, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-787, T1203
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 20, 2021CVE publishedPublication date reported by the CVE source.
- Aug 4, 2024Record updatedLatest update available in the CVE record.
Exploitability
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What is affected?
Affected products and versions are unavailable in this record.
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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