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Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLWp3cGgtcXA1aC1mOXdq

Data races in bunch

An issue was discovered in the bunch crate through 2020-11-12 for Rust.
Affected versions of this crate unconditionally implements Send/Sync for Bunch<T>.
This allows users to insert T: !Sync to Bunch<T>. It is possible to create a data race to a T: !Sync by invoking the Bunch::get() API (which returns &T) from multiple threads. It is also possible to send T: !Send to other threads by inserting T inside Bunch<T> and sending Bunch<T> to another thread, allowing to create a data race by inserting types like T = Rc<_>.

Such data races can lead to memory corruption.

Permalink: https://github.com/advisories/GHSA-jwph-qp5h-f9wj
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLWp3cGgtcXA1aC1mOXdq
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: over 2 years ago
Updated: about 1 year ago

CVSS Score: 8.1
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Identifiers: GHSA-jwph-qp5h-f9wj, CVE-2020-36450
References:

• https://nvd.nist.gov/vuln/detail/CVE-2020-36450
• https://rustsec.org/advisories/RUSTSEC-2020-0130.html
• https://github.com/krl/bunch/issues/1
• https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/bunch/RUSTSEC-2020-0130.md
• https://github.com/advisories/GHSA-jwph-qp5h-f9wj

Repository: https://github.com/krl/bunch
Blast Radius: 1.0

Affected Packages