WS-2020-0189 (Medium) detected in futures-util-0.3.5.crate - autoclosed

[mend-for-github-com[bot]]

WS-2020-0189 - Medium Severity Vulnerability

Vulnerable Library - futures-util-0.3.5.crate

Common utilities and extension traits for the futures-rs library.

Library home page: https://crates.io/api/v1/crates/futures-util/0.3.5/download

Dependency Hierarchy: - hyper-0.13.5.crate (Root Library) - h2-0.2.5.crate - :x: **futures-util-0.3.5.crate** (Vulnerable Library)

Found in HEAD commit: 95d576b672062f2c8cd301fe4dd3e17fc29edc64

Found in base branch: master

Vulnerability Details

Affected versions of futures-rs had a Send/Sync implementation for MappedMutexGuard that only considered variance on T, while MappedMutexGuard dereferenced to U. This could of led to data races in safe Rust code when a closure used in MutexGuard::map() returns U that is unrelated to T. The issue was fixed by fixing Send and Sync implementations, and by adding a PhantomData<&'a mut U> marker to the MappedMutexGuard type to tell the compiler that the guard is over U too. This is affecting future-rs 0.3.2 through 0.3.6 and fixed in futures-rs 0.3.7 onwards.

Publish Date: 2020-11-02

URL: WS-2020-0189

CVSS 3 Score Details (5.3)

Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: None - Integrity Impact: None - Availability Impact: Low

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Release Date: 2020-11-02

Fix Resolution: 0.3.7

[mend-for-github-com[bot]]

:heavy_check_mark: This issue was automatically closed by Mend because the vulnerable library in the specific branch(es) was either marked as ignored or it is no longer part of the Mend inventory.

[mend-for-github-com[bot]]

:information_source: This issue was automatically re-opened by Mend because the vulnerable library in the specific branch(es) has been detected in the Mend inventory.

[mend-for-github-com[bot]]

:heavy_check_mark: This issue was automatically closed by Mend because the vulnerable library in the specific branch(es) was either marked as ignored or it is no longer part of the Mend inventory.