RUSTSEC-2021-0093

Source
https://rustsec.org/advisories/RUSTSEC-2021-0093
Import Source
https://github.com/rustsec/advisory-db/blob/osv/crates/RUSTSEC-2021-0093.json
Aliases
Published
2021-07-30T12:00:00Z
Modified
2023-11-08T04:06:00.955077Z
Details

In the affected version of this crate, the result of the race condition is that one or more tasks in the worker queue can be popped twice instead of other tasks that are forgotten and never popped. If tasks are allocated on the heap, this can cause double free and a memory leak. If not, this still can cause a logical bug.

Crates using Stealer::steal, Stealer::steal_batch, or Stealer::steal_batch_and_pop are affected by this issue.

Credits to @kmaork for discovering, reporting and fixing the bug.

References

Affected packages

crates.io / crossbeam-deque

Package

Name
crossbeam-deque

Affected ranges

Type
SEMVER
Events
Introduced
0.0.0-0
Fixed
0.7.4
Introduced
0.8.0
Fixed
0.8.1

Ecosystem specific 

{
    "affects": {
        "os": [],
        "functions": [],
        "arch": []
    }
}

Database specific 

{
    "cvss": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
    "informational": null,
    "categories": [
        "memory-corruption"
    ]
}