What’s Vulnerable › Vulnerabilities

CVE-2017-20004

• Severity: medium (CVSS 5.9 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-04-14 · updated 2026-06-17
• Weakness: CWE-362

Description

In the standard library in Rust before 1.19.0, there is a synchronization problem in the MutexGuard object. MutexGuards can be used across threads with any types, allowing for memory safety issues through race conditions.

Affected products

• rust-lang rust: before 1.19.0 — fixed in 1.19.0

How to fix

Upgrade to a fixed version: rust-lang rust 1.19.0. Check the vendor advisory for mitigations.

References

• https://github.com/rust-lang/rust/issues/41622
• https://github.com/rust-lang/rust/pull/41624
• https://github.com/rust-lang/rust/issues/41622
• https://github.com/rust-lang/rust/pull/41624

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