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WS-2022-0283
Good to know:
Date: August 30, 2022
Affected versions of this crate passes an uninitialized buffer to a user-provided Read implementation. 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. Note: there is only UB in the case where a user provides a struct whose Read implementation inspects the buffer passed to read_exact before writing to it. This is an unidiomatic (albeit possible) Read implementation.
Language: RUST
Severity Score
Severity Score
Weakness Type (CWE)
Use of Uninitialized Resource
CWE-908Top Fix
CVSS v3.1
Base Score: |
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Attack Vector (AV): | NETWORK |
Attack Complexity (AC): | LOW |
Privileges Required (PR): | NONE |
User Interaction (UI): | NONE |
Scope (S): | UNCHANGED |
Confidentiality (C): | HIGH |
Integrity (I): | HIGH |
Availability (A): | HIGH |