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crossbeam-utils provides atomics, synchronization primitives, scoped threads, and other utilities for concurrent programming in Rust. crossbeam-utils prior to version 0.8.7 incorrectly assumed that the alignment of {i,u}64 was always the same as Atomic{I,U}64. However, the alignment of {i,u}64 on a 32-bit target can be smaller than Atomic{I,U}64. This can cause unaligned memory accesses and data race. Crates using fetch_* methods with AtomicCell<{i,u}64> are affected by this issue. 32-bit targets without Atomic{I,U}64 and 64-bit targets are not affected by this issue. This has been fixed in crossbeam-utils 0.8.7. There are currently no known workarounds.
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CVE-2022-23639 (High) detected in crossbeam-utils-0.8.5.crate
CVE-2022-23639 (High) detected in crossbeam-utils-0.8.5.crate, crossbeam-utils-0.6.6.crate
Dec 29, 2023
CVE-2022-23639 - High Severity Vulnerability
Vulnerable Libraries - crossbeam-utils-0.8.5.crate, crossbeam-utils-0.6.6.crate
crossbeam-utils-0.8.5.crate
Utilities for concurrent programming
Library home page: https://crates.io/api/v1/crates/crossbeam-utils/0.8.5/download
Path to dependency file: /Cargo.toml
Path to vulnerable library: /Cargo.toml
Dependency Hierarchy:
crossbeam-utils-0.6.6.crate
Utilities for concurrent programming
Library home page: https://crates.io/api/v1/crates/crossbeam-utils/0.6.6/download
Path to dependency file: /Cargo.toml
Path to vulnerable library: /Cargo.toml
Dependency Hierarchy:
Found in HEAD commit: 8442595dc68076584ca77572fc42224085fe9ae5
Found in base branch: main
Vulnerability Details
crossbeam-utils provides atomics, synchronization primitives, scoped threads, and other utilities for concurrent programming in Rust. crossbeam-utils prior to version 0.8.7 incorrectly assumed that the alignment of
{i,u}64
was always the same asAtomic{I,U}64
. However, the alignment of{i,u}64
on a 32-bit target can be smaller thanAtomic{I,U}64
. This can cause unaligned memory accesses and data race. Crates usingfetch_*
methods withAtomicCell<{i,u}64>
are affected by this issue. 32-bit targets withoutAtomic{I,U}64
and 64-bit targets are not affected by this issue. This has been fixed in crossbeam-utils 0.8.7. There are currently no known workarounds.Publish Date: 2022-02-15
URL: CVE-2022-23639
CVSS 3 Score Details (8.1)
Base Score Metrics:
Suggested Fix
Type: Upgrade version
Origin: GHSA-qc84-gqf4-9926
Release Date: 2022-02-15
Fix Resolution: crossbeam-utils - 0.8.7
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