GitHub Advisoryadvisory · crates.io

GHSA-jrcf-4jp8-m28v miow invalidly assumes the memory layout of std::net::SocketAddr

MEDIUM Published 2021-08-25 Modified 2023-06-13 Official page ↗
Aliases
CVE-2020-35921
Ecosystem
crates.io
Packages
miow
Severity
Moderate
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-188
Reviewed
2021-08-19

Affected packages

• crates.io miow: >= 0.3.0, < 0.3.6 → fixed in 0.3.6

Description

The miow crate has assumed std::net::SocketAddrV4 and std::net::SocketAddrV6 have the same memory layout as the system C representation sockaddr. It has simply casted the pointers to convert the socket addresses to the system representation. The standard library does not say anything about the memory layout, and this will cause invalid memory access if the standard library changes the implementation. No warnings or errors will be emitted once the change happens.

Related

Alias · CVE (1)

  • CVE-2020-35921 An issue was discovered in the miow crate before 0.3.6 for Rust. vulnerability

Weakness · CWE (1)

  • CWE-188 Reliance on Data/Memory Layout weakness

References