CVE Vulnerability

CVE-2022-23639

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` 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.

6.8 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

8.1 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 2.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/crossbeam-rs/crossbeam/releases/tag/crossbeam-utils-0.8.7 Patch Third Party Advisory
https://github.com/crossbeam-rs/crossbeam/security/advisories/GHSA-qc84-gqf4-9926 Exploit Third Party Advisory
https://github.com/crossbeam-rs/crossbeam/pull/781 Issue Tracking Patch
Configurations

Configuration 1

cpe:2.3:a:crossbeam_project:crossbeam:*:*:*:*:*:rust:*:*
Information

Published : 2022-02-15 07:15

Updated : 2023-02-10 04:28

NVD link : CVE-2022-23639

Mitre link : CVE-2022-23639

Products Affected
No products.
CWE
CWE-362