Memory exposure via uninitialized ReadKVExt buffers
Published Dec 26, 2021 · Updated Aug 4, 2024
Uninitialized-memory access in bronzedb-protocol 0.1.0 and earlier allows attackers to expose process memory through ReadKVExt. ReadKVExt::read_key and read_value set newly allocated vector lengths without initializing their bytes, then pass the slices to a user-provided Read implementation. Exploitation requires a consuming application to invoke these methods with an attacker-controlled Read implementation, causing memory exposure or undefined behavior within that process.
Summary
What happened
Uninitialized-memory access in bronzedb-protocol 0.1.0 and earlier allows attackers to expose process memory through ReadKVExt. ReadKVExt::read_key and read_value set newly allocated vector lengths without initializing their bytes, then pass the slices to a user-provided Read implementation. Exploitation requires a consuming application to invoke these methods with an attacker-controlled Read implementation, causing memory exposure or undefined behavior within that process.
The record
- CVE
- CVE-2021-45682
- Published
- Dec 26, 2021
- Updated
- Aug 4, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-908
- Attack vector
- Unavailable
- Privileges
- Unavailable
Timeline
How it unfolded
- Dec 26, 2021CVE publishedPublication date reported by the CVE source.
- Aug 4, 2024Record updatedLatest update available in the CVE record.
Exploitability
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Attacks
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