CVE-2020-36445: Data races in convec

August 25, 2021

Affected versions of this crate unconditionally implement Send/Sync for ConVec<T>. This allows users to insert T that is not Send or not Sync.

This allows users to create data races by using non-Send types like Arc<Cell<_>> or Rc<_> as T in ConVec<T>. It is also possible to create data races by using types like Cell<_> or RefCell<_> as T (types that are Send but not Sync). Such data races can lead to memory corruption.

References

github.com/advisories/GHSA-rpxm-vmr7-5f5f
github.com/krl/convec
nvd.nist.gov/vuln/detail/CVE-2020-36445
raw.githubusercontent.com/rustsec/advisory-db/main/crates/convec/RUSTSEC-2020-0125.md
rustsec.org/advisories/RUSTSEC-2020-0125.html

Code Behaviors & Features

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