GitHub Advisoryadvisory · crates.io

GHSA-pwhf-7427-9vv2 Non-atomic writes in cgc

MEDIUM Published 2021-08-25 Modified 2023-06-13 Official page ↗
Aliases
CVE-2020-36468
Ecosystem
crates.io
Packages
cgc
Severity
Moderate
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-657
Reviewed
2021-08-18

Affected packages

• crates.io cgc: <= 0.4.0 (no fix yet)

Description

Multiple soundness issues in `Ptr` in cgc Affected versions of this crate have the following issues: 1. `Ptr` implements `Send` and `Sync` for all types, this can lead to data races by sending non-thread safe types across threads. 2. `Ptr::get` violates mutable alias rules by returning multiple mutable references to the same object. 3. `Ptr::write` uses non-atomic writes to the underlying pointer. This means that when used across threads it can lead to data races.

Related

Alias · CVE (1)

  • CVE-2020-36468 An issue was discovered in the cgc crate through 2020-12-10 for Rust. vulnerability

Weakness · CWE (1)

  • CWE-657 Violation of Secure Design Principles weakness

References