CVE-2017-20004 : In the standard library in Rust before 1.19.0, there is a synchronization problem in the MutexGuard object. MutexGuards

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.

Published 2021-04-14 07:15:11

Updated 2021-04-20 22:17:29

Source MITRE

View at NVD, CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2017-20004

EPSS FAQ

0.07%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 29 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2017-20004

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
4.3	MEDIUM	AV:N/AC:M/Au:N/C:N/I:P/A:N	8.6	2.9	NIST
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: None Integrity Impact: Partial Availability Impact: None
5.9	MEDIUM	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N	2.2	3.6	NIST
Attack Vector: Network Attack Complexity: High Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: High Availability: None

CWE ids for CVE-2017-20004

CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2017-20004

https://github.com/rust-lang/rust/pull/41624

MutexGuard<T> may be Sync only if T is Sync by RalfJung · Pull Request #41624 · rust-lang/rust · GitHub
Patch;Third Party Advisory
https://github.com/rust-lang/rust/issues/41622

MutexGuard<Cell<i32>> must not be Sync · Issue #41622 · rust-lang/rust · GitHub
Patch;Third Party Advisory

Products affected by CVE-2017-20004

Rust-lang » Rust
Versions before (<) 1.19.0
cpe:2.3:a:rust-lang:rust:*:*:*:*:*:*:*:*
Matching versions

Vulnerability Details : CVE-2017-20004

Exploit prediction scoring system (EPSS) score for CVE-2017-20004

CVSS scores for CVE-2017-20004

CWE ids for CVE-2017-20004

References for CVE-2017-20004

Products affected by CVE-2017-20004