Ecosyste.ms: Advisories

Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLW04aDgtdjZqaC1jNzYy

Incorrect buffer size in crossbeam-channel

The affected version of this crate's the bounded channel incorrectly assumes that Vec::from_iter has allocated capacity that same as the number of iterator elements. Vec::from_iter does not actually guarantee that and may allocate extra memory. The destructor of the bounded channel reconstructs Vec from the raw pointer based on the incorrect assumes described above. This is unsound and causing deallocation with the incorrect capacity when Vec::from_iter has allocated different sizes with the number of iterator elements.

Permalink: https://github.com/advisories/GHSA-m8h8-v6jh-c762
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLW04aDgtdjZqaC1jNzYy
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: about 3 years ago
Updated: over 1 year ago

CVSS Score: 5.5
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Identifiers: GHSA-m8h8-v6jh-c762, CVE-2020-35904
References:

• https://nvd.nist.gov/vuln/detail/CVE-2020-35904
• https://github.com/crossbeam-rs/crossbeam/pull/533
• https://rustsec.org/advisories/RUSTSEC-2020-0052.html
• https://github.com/advisories/GHSA-m8h8-v6jh-c762

Repository: https://github.com/crossbeam-rs/crossbeam
Blast Radius: 25.1

Affected Packages