GitHub Advisoryadvisory · crates.io

GHSA-c79c-gwph-gqfm `net2` invalidly assumes the memory layout of std::net::SocketAddr

MEDIUM Published 2022-05-24 Modified 2023-06-14 Official page ↗
Aliases
CVE-2020-35919
Ecosystem
crates.io
Packages
net2
Severity
Moderate
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Reviewed
2023-06-14

Affected packages

• crates.io net2: < 0.2.36 → fixed in 0.2.36

Description

The net2 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-2020-35919 An issue was discovered in the net2 crate before 0.2.36 for Rust. vulnerability

References