RUSTSEC-2025-0024 – crossbeam-channel

Package

Manager: cargo
Name: crossbeam-channel
Vulnerable Version: >=0.5.12-0 <0.5.15

Severity

Level: Low

CVSS v3.1: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:P/RL:O/RC:R

CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

EPSS: N/A pctlN/A

Details

crossbeam-channel: double free on Drop The internal `Channel` type's `Drop` method has a race which could, in some circumstances, lead to a double-free. This could result in memory corruption. Quoting from the [upstream description in merge request \#1187](https://github.com/crossbeam-rs/crossbeam/pull/1187#issue-2980761131): > The problem lies in the fact that `dicard_all_messages` contained two paths that could lead to `head.block` being read but only one of them would swap the value. This meant that `dicard_all_messages` could end up observing a non-null block pointer (and therefore attempting to free it) without setting `head.block` to null. This would then lead to `Channel::drop` making a second attempt at dropping the same pointer. The bug was introduced while fixing a memory leak, in upstream [MR \#1084](https://github.com/crossbeam-rs/crossbeam/pull/1084), first published in 0.5.12. The fix is in upstream [MR \#1187](https://github.com/crossbeam-rs/crossbeam/pull/1187) and has been published in 0.5.15

Metadata

Created: 2025-04-08T12:00:00Z
Modified: 2025-04-10T12:42:12.936052Z
Source: https://osv-vulnerabilities
CWE IDs: N/A
Alternative ID: N/A
Finding: F124
Auto approve: 1