Boot instability via random-seed buffer overwrite
Published May 6, 2025 · Updated May 6, 2025
Out-of-bounds write in Finit 4.2 through 4.11 allows local users to corrupt heap memory during boot through saved random-seed data. The urandom setup routine indexes rand_pool_info.buf by typed elements instead of bytes, causing successive reads to write beyond the allocated buffer. The plugin is enabled by default; exploitation requires high local privileges and user interaction and can cause boot instability or undefined behavior.
Summary
What happened
Out-of-bounds write in Finit 4.2 through 4.11 allows local users to corrupt heap memory during boot through saved random-seed data. The urandom setup routine indexes rand_pool_info.buf by typed elements instead of bytes, causing successive reads to write beyond the allocated buffer. The plugin is enabled by default; exploitation requires high local privileges and user interaction and can cause boot instability or undefined behavior.
The record
- CVE
- CVE-2025-32022
- Published
- May 6, 2025
- Updated
- May 6, 2025
- Vendor
- Troglobit
- Product
- Finit
- Classifications
- CWE-787, T1499.004
- Attack vector
- local
- Privileges
- admin
Timeline
How it unfolded
- May 6, 2025CVE publishedPublication date reported by the CVE source.
- May 6, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=>= 4.2, < 4.12
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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Public exploit references
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Technologies
Your stack
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Your stack
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