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GHSA-39xg-8p43-h76x

Data races in reffers

Source: GitHub Advisory Database (reviewed) Moderate CVE-2020-36203

Packages

EcosystemPackageAffectedFixed in
crates.io reffers < 0.6.1 0.6.1

Details

As written in the advisory (Markdown source, shown as plain text).

ARefss<'a, V> is a type that is assumed to contain objects that are Send + Sync. In the affected versions of this crate, Send/Sync traits are unconditionally implemented for ARefss<'a, V>. By using the ARefss::map() API, we can insert a !Send or !Sync object into ARefss<'a, V>. After that, it is possible to create a data race to the inner object of ARefss<'a, V>, which can lead to undefined behavior & memory corruption. The flaw was corrected in commit `6dd7ca0` by adding trait bound V: Send + Sync to ARefss::map() API.

References

External links from the advisory. They lead to third-party sites.