Описание
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.
Ссылки
- Issue TrackingPatchThird Party Advisory
- PatchThird Party Advisory
- ExploitThird Party Advisory
- Issue TrackingPatchThird Party Advisory
- PatchThird Party Advisory
- ExploitThird Party Advisory
Уязвимые конфигурации
EPSS
8.1 High
CVSS3
6.8 Medium
CVSS2
Дефекты
Связанные уязвимости
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.
crossbeam-utils provides atomics, synchronization primitives, scoped t ...
crossbeam-utils Unsoundness of AtomicCell<{i,u}64> arithmetics on 32-bit targets that support Atomic{I,U}64
Уязвимость инструментов для параллельного программирования Crossbeam Utils на 32-битных системах, связанная с одновременным выполнением с использованием общего ресурса с неправильной синхронизацией, позволяющая нарушителю получить доступ к конфиденциальным данным, нарушить их целостность, а также вызвать отказ в обслуживании
EPSS
8.1 High
CVSS3
6.8 Medium
CVSS2