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Assumed memory layout of std::net::SocketAddr

Moderate severity GitHub Reviewed Published Aug 25, 2021 to the GitHub Advisory Database • Updated Jan 9, 2023
Withdrawn This advisory was withdrawn on Aug 24, 2021

Package

cargo socket2 (Rust)

Affected versions

< 0.3.16

Patched versions

0.3.16

Description

The socket2 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.

References

Reviewed Aug 6, 2021
Withdrawn Aug 24, 2021
Published to the GitHub Advisory Database Aug 25, 2021
Last updated Jan 9, 2023

Severity

Moderate

Weaknesses

CVE ID

No known CVE

GHSA ID

GHSA-p5w9-856p-8q4g

Source code

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