GHSA-g753-ghr7-q33w json
cyfs-base vulnerable to misaligned pointer dereference in `ChunkId::new`
published 3y ago modified 3y ago also RUSTSEC-2023-0046
- cvss
- —
- not scored
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- —
- no score, EPSS covers CVEs only
- public exploits
- 0
- none known
Summary
The function `ChunkId::new` creates a misaligned pointer by casting mutable pointer of `u8` slice which has alignment 1 to the mutable pointer of `u32` which has alignment 4, and dereference the misaligned pointer leading UB, which should not be allowed in safe function.
Patch / fix
Is GHSA-g753-ghr7-q33w in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerAffected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| crates.io | cyfs-base | <=0.6.12 >=0.0.0-0 |
no fix listed |
References
Sources
- GitHub Advisory GHSA-g753-ghr7-q33w
- OSV RUSTSEC-2023-0046
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.