GitHub Advisoryadvisory · crates.io

GHSA-rm4w-6696-r77p nb-connect invalidly assumes the memory layout of std::net::SocketAddr

CRITICAL Published 2021-08-25 Modified 2023-06-13 Official page ↗
Aliases
CVE-2021-27376
Ecosystem
crates.io
Packages
nb-connect
Severity
Critical
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-119
Reviewed
2021-08-19

Affected packages

• crates.io nb-connect: < 1.0.3 → fixed in 1.0.3

Description

The nb-connect 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-2021-27376 An issue was discovered in the nb-connect crate before 1.0.3 for Rust. vulnerability

Weakness · CWE (1)

  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer weakness

References