xudong-huang/generator-rs · Security
Data races in generator
- GHSA ID
- GHSA-w3g5-2848-2v8r
- CVE ID
- CVE-2020-36471
- Severity
- medium
- Published
- Updated
- CVSS
- 5.9 · CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS v3
- 5.9 · CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Description
The Generator type is an iterable which uses a generator function that yields
values. In affected versions of the crate, the provided function yielding values
had no Send bounds despite the Generator itself implementing Send.
The generator function lacking a Send bound means that types that are
dangerous to send across threads such as Rc could be sent as part of a
generator, potentially leading to data races.
This flaw was fixed in commit f7d120a3b
by enforcing that the generator function be bound by Send.
CWEs
- CWE-362 · Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
References
- https://nvd.nist.gov/vuln/detail/CVE-2020-36471 ↗
- https://github.com/Xudong-Huang/generator-rs/issues/27 ↗
- https://rustsec.org/advisories/RUSTSEC-2020-0151.html ↗
- https://github.com/Xudong-Huang/generator-rs/commit/f7d120a3b724d06a7b623d0a4306acf8f78cb4f0 ↗
- https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/generator/RUSTSEC-2020-0151.md ↗
- https://github.com/advisories/GHSA-w3g5-2848-2v8r ↗