Ecosyste.ms: Advisories

Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLTM5eGctOHA0My1oNzZ4

Data races in reffers

ARefss<'a, V> is a type that is assumed to contain objects that are Send + Sync.

In the affected versions of this crate, Send/Sync traits are unconditionally implemented for ARefss<'a, V>.

By using the ARefss::map() API, we can insert a !Send or !Sync object into ARefss<'a, V>. After that, it is possible to create a data race to the inner object of ARefss<'a, V>, which can lead to undefined behavior & memory corruption.

The flaw was corrected in commit 6dd7ca0 by adding trait bound V: Send + Sync to ARefss::map() API.

Permalink: https://github.com/advisories/GHSA-39xg-8p43-h76x
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLTM5eGctOHA0My1oNzZ4
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: over 2 years ago
Updated: 11 months ago

CVSS Score: 4.7
CVSS vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Identifiers: GHSA-39xg-8p43-h76x, CVE-2020-36203
References:

• https://nvd.nist.gov/vuln/detail/CVE-2020-36203
• https://github.com/diwic/reffers-rs/issues/7
• https://rustsec.org/advisories/RUSTSEC-2020-0094.html
• https://github.com/diwic/reffers-rs/commit/6dd7ca0d50f2464df708975cdafcfaeeb6d41c66
• https://github.com/advisories/GHSA-39xg-8p43-h76x

Repository: https://github.com/diwic/reffers-rs
Blast Radius: 4.2

Affected Packages