critical9.8
CVE-2021-45684
Use of Uninitialized Resource in flumedb.
Impact
Affected versions of this crate passes an uninitialized buffer to a user-provided Read implementation. There are two of such cases (go_offset_log::read_entry() & offset_log::read_entry()). Arbitrary Read implementations can read from the uninitialized buffer (memory exposure) and also can return incorrect number of bytes written to the buffer. Reading from uninitialized memory produces undefined values that can quickly invoke undefined behavior.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| rust | flumedb | < 0.1.6 | 0.1.6 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Flumedb Project | Flumedb | through 0.1.5 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/flumedb/RUSTSEC-2021-0086.md
- https://rustsec.org/advisories/RUSTSEC-2021-0086.html
- https://github.com/advisories/GHSA-p46c-w9m3-7qr2
- https://nvd.nist.gov/vuln/detail/CVE-2021-45684
- https://github.com/sunrise-choir/flumedb-rs/pull/12
- https://github.com/sunrise-choir/flumedb-rs/commit/14b7440271c9d2316fab52c745e21087559364f6
- https://github.com/sunrise-choir/flumedb-rs/issues/10