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WS-2017-3764

Date: August 19, 2025

Affected versions of this crate pre-allocate memory on deserializing raw buffers without checking whether there is sufficient data available. This allows an attacker to do denial-of-service attacks by sending small msgpack messages that allocate gigabytes of memory.

Language: RUST

Severity Score

Related Resources (6)

https://github.com/3Hren/msgpack-rust/commit/8559aee7c5485426e3d5f7cfb7368248b6ca4373
https://github.com/3Hren/msgpack-rust
https://github.com/3Hren/msgpack-rust/issues/151
https://rustsec.org/advisories/RUSTSEC-2017-0006.html
https://crates.io/crates/rmpv
https://www.mend.io/vulnerability-database/WS-2017-3764

Severity Score

Weakness Type (CWE)

Uncontrolled Resource Consumption

CWE-400

CVSS 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

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