CVE-2020-35711: Dangling reference in `access::Map` with Constant

May 24, 2022 (updated June 16, 2022)

An issue has been discovered in the arc-swap crate before 0.4.8 (and 1.x before 1.1.0) for Rust. Use of arc_swap::access::Map with the Constant test helper (or with a user-supplied implementation of the Access trait) could sometimes lead to dangling references being returned by the map.

References

github.com/advisories/GHSA-9pqx-g3jh-qpqq
github.com/vorner/arc-swap
github.com/vorner/arc-swap/issues/45
nvd.nist.gov/vuln/detail/CVE-2020-35711
rustsec.org/advisories/RUSTSEC-2020-0091.html

Code Behaviors & Features

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