Loading...
Skip to main content
GeekWala

CVE-2020-36449 — Vulnerability in kekbit — CVE Details

HIGH

ShmWriter allows sending non-Send type across threads

Published December 18, 2020Updated November 8, 2023Source: osv

Summary

Affected versions of this crate implement `Send` for `ShmWriter<H>` without requiring `H: Send`. This allows users to send `H: !Send` to other threads, which can potentially lead to data races and undefined behavior.

Advisory Timeline

  • First published December 18, 2020 (2124 days ago).
  • Last revised November 8, 2023 — 1055 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Cargo
Update kekbit to 0.3.4 or later
cargo update -p kekbit --precise 0.3.4

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

Affects 1 ecosystem: crates.io (1).

PackageEcosystemAffectedFixed In
kekbit
crates.io
All versions0.3.4

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 8.1 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Frequently Asked Questions

What is CVE-2020-36449?
ShmWriter allows sending non-Send type across threads This vulnerability has been assigned a severity rating of HIGH (CVSS score: 8.1/10).
How do I check if my project is affected by CVE-2020-36449?
CVE-2020-36449 affects kekbit. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2020-36449 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
8.1

High exploitability or significant impact. Prioritize remediation within days.

Also Known As

RUSTSEC-2020-0129
GHSA-g83m-67wh-whpw

Related CVEs

  • CVE-2026-93657
    HIGH

    hickory-resolver: Resolver::lookup() and Resolver::lookup_ip() APIs obscure DNSSEC validation failures

  • CVE-2026-18140
    HIGH

    aws-smithy-json: Uncontrolled recursion in the aws-smithy-json unknown-key skip path allows unauthenticated remote denial of service in smithy-rs generated servers

More crates.io advisories

Check if you're affected

Scan your dependencies to see if this vulnerability affects your projects.

Scan Your Dependencies