GHSA-m8h8-v6jh-c762

Suggest an improvement
Source
https://github.com/advisories/GHSA-m8h8-v6jh-c762
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/08/GHSA-m8h8-v6jh-c762/GHSA-m8h8-v6jh-c762.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-m8h8-v6jh-c762
Aliases
Published
2021-08-25T20:49:43Z
Modified
2023-11-08T04:02:35.713139Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Incorrect buffer size in crossbeam-channel
Details

The affected version of this crate's the bounded channel incorrectly assumes that Vec::fromiter has allocated capacity that same as the number of iterator elements. Vec::fromiter 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.

Database specific
{
    "nvd_published_at": null,
    "cwe_ids": [
        "CWE-131"
    ],
    "severity": "MODERATE",
    "github_reviewed": true,
    "github_reviewed_at": "2021-08-19T20:51:01Z"
}
References

Affected packages

crates.io / crossbeam-channel

Package

Name
crossbeam-channel
View open source insights on deps.dev
Purl
pkg:cargo/crossbeam-channel

Affected ranges

Type
SEMVER
Events
Introduced
0.4.3
Fixed
0.4.4