rust-random/rand · Security
Unaligned memory access in rand_core
- GHSA ID
- GHSA-mmc9-pwm7-qj5w
- CVE ID
- CVE-2020-25576
- Severity
- critical
- Published
- Updated
- CVSS
- 9.8 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS v3
- 9.8 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Description
Impact
Affected versions of this crate violated alignment when casting byte slices to integer slices, resulting in undefined behavior. rand_core::BlockRng::next_u64 and rand_core::BlockRng::fill_bytes are affected.
Patches
The flaw was corrected by Ralf Jung and Diggory Hardy for rand_core >= 0.4.2.
Workarounds
None.
References
See Rand's changelog.
For more information
If you have any questions or comments about this advisory, open an issue in the Rand repository.
CWEs
- CWE-704 · Incorrect Type Conversion or Cast