Non-aligned u32 read in Chacha20 encryption and decryption
Priority LOW 38Published · Updated
Key facts
- Attack vector
- —
- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
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- Confidentiality · integrity · availability
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- Fix status
- No fix listed
No CVSS vector from any source. Fix status from GitHub.
Summary
The implementation does not enforce alignment requirements on input slices while incorrectly assuming 4-byte alignment through an unsafe call to `std::slice::from_raw_parts_mut`, which breaks the contract and introduces undefined behavior. This affects Chacha20 encryption and decryption in crypto2.
Why it matters now
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | crypto2 (crates.io) | up to 0.1.2 | — | No fix listed | GHSA-pmcv-mgcf-rvxg |
- crypto2 (crates.io) Vendor— Affected up to 0.1.2 Fixed in — No fix listed GHSA-pmcv-mgcf-rvxg
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-03 Threatist record created from GHSA-pmcv-mgcf-rvxg
References
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences