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Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLXJtNHctNjY5Ni1yNzdw

nb-connect invalidly assumes the memory layout of std::net::SocketAddr

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.

Permalink: https://github.com/advisories/GHSA-rm4w-6696-r77p
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLXJtNHctNjY5Ni1yNzdw
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Critical
Classification: General
Published: over 2 years ago
Updated: 11 months ago

CVSS Score: 9.8
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Identifiers: GHSA-rm4w-6696-r77p, CVE-2021-27376
References:

• https://nvd.nist.gov/vuln/detail/CVE-2021-27376
• https://github.com/smol-rs/nb-connect/issues/1
• https://rustsec.org/advisories/RUSTSEC-2021-0021.html
• https://github.com/advisories/GHSA-rm4w-6696-r77p

Repository: https://github.com/smol-rs/nb-connect
Blast Radius: 30.3

Affected Packages