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WS-2021-0008
Date: January 26, 2021
marc crate before 2.0.0 passes an uninitialized buffer to a user-provided 'Read' implementation ('Record::read()'). Arbitrary 'Read' implementations can read from the uninitialized buffer (memory exposure) and also can return incorrect number of bytes written to the buffer. Reading from uninitialized memory produces undefined values that can quickly invoke undefined behavior.
Language: RUST
Severity Score
Severity Score
Weakness Type (CWE)
Improper Initialization
CWE-665CVSS v3.1
| Base Score: |
|
|---|---|
| Attack Vector (AV): | LOCAL |
| Attack Complexity (AC): | LOW |
| Privileges Required (PR): | NONE |
| User Interaction (UI): | REQUIRED |
| Scope (S): | UNCHANGED |
| Confidentiality (C): | NONE |
| Integrity (I): | NONE |
| Availability (A): | HIGH |