Vulnerability in Tokio
CVE-2021-38191
An issue was discovered in the tokio crate before 1.8.1 for Rust. Upon a JoinHandle::abort, a Task may be dropped in the wrong thread.
Vulnerability class: Race Condition
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.008 (56.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 56.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: -0.000
Affected products
- Tokio — versions 1.8.0
Weakness classification (CWE)
References
- rustsec.org/advisories/RUSTSEC-2021-0072.html (Exploit, Patch, Third Party Advisory, Issue Tracking)
- raw.githubusercontent.com/rustsec/advisory-db/main/crates/tokio/RUSTSEC-2021-00… (Third Party Advisory)
Frequently asked questions
- What is CVE-2021-38191?
- CVE-2021-38191 is a medium-severity vulnerability in Tokio, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 5.9/10. Published 2021-08-08.
- How severe is CVE-2021-38191?
- Medium severity. CVSS v3 base score is 5.9 out of 10.