MEDIUM4.7
GHSA-39xg-8p43-h76x
Data races in reffers
Details
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.
Are you affected?
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Affected packages
crates.io/reffers
Introduced in:
0Fixed in: 0.6.1Upgrade reffers to 0.6.1 or newer (ecosystem crates.io).