Wiz
Vulnerability DatabaseCVE-2020-36455

CVE-2020-36455: 
Rust vulnerability analysis and mitigation

Overview

An issue was discovered in the slock crate through 2020-11-17 for Rust. The vulnerability stems from Slock unconditionally implementing Send and Sync traits, which could lead to potential security risks (RustSec Advisory).

Technical details

The vulnerability is tracked as CVE-2020-36455 with a CVSS score of 8.1 (HIGH). The technical issue involves Slock implementing Send/Sync traits without proper bounds checking, which allows sending non-Send types across thread boundaries. This implementation flaw could result in unsafe thread operations (RustSec Advisory).

Impact

The vulnerability can lead to data races and memory corruption when non-Send types are sent across thread boundaries. This poses significant risks to system integrity and security, with potential high impacts on confidentiality, integrity, and availability of the affected systems (RustSec Advisory).

Mitigation and workarounds

The vulnerability has been patched in version 0.2.0 and later versions of the slock crate. Users are advised to upgrade to the patched version to mitigate the security risk (RustSec Advisory).

Additional resources

Source: This report was generated using AI

Related Rust vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2026-22698HIGH8.7
  • RustRust
  • sm2
NoNoJan 10, 2026
CVE-2026-22700HIGH7.5
  • RustRust
  • sm2
NoNoJan 10, 2026
CVE-2026-22699HIGH7.5
  • RustRust
  • sm2
NoNoJan 10, 2026
CVE-2026-22705MEDIUM6.4
  • RustRust
  • ml-dsa
NoYesJan 10, 2026
CVE-2025-15504MEDIUM4.8
  • PythonPython
  • lief
NoYesJan 10, 2026

Free Vulnerability Assessment

Benchmark your Cloud Security Posture

Evaluate your cloud security practices across 9 security domains to benchmark your risk level and identify gaps in your defenses.

Request assessment

Additional Wiz resources

Cloud Vulnerability DB

Cloud Vulnerability DB

A community-led vulnerabilities database

Cloud Threat Landscape

Cloud Threat Landscape

A threat intelligence database

PEACH

PEACH

A tenant isolation framework

Get a personalized demo

Ready to see Wiz in action?

"Best User Experience I have ever seen, provides full visibility to cloud workloads."
David EstlickCISO
"Wiz provides a single pane of glass to see what is going on in our cloud environments."
Adam FletcherChief Security Officer
"We know that if Wiz identifies something as critical, it actually is."
Greg PoniatowskiHead of Threat and Vulnerability Management
Get a demo