RUSTSEC-2020-0122: beef::Cow lacks a Sync bound on its Send trait allowing for data races
github-actions opened this issue · comments
beef::Cow lacks a Sync bound on its Send trait allowing for data races
Details | |
---|---|
Package | beef |
Version | 0.4.4 |
URL | maciejhirsz/beef#37 |
Date | 2020-10-28 |
Patched versions | >=0.5.0 |
Affected versions of this crate did not have a T: Sync
bound in the Send
impl for Cow<'_, T, U>
. This allows users to create data races by making Cow
contain types that are (Send && !Sync) like Cell<_>
or RefCell<_>
.
Such data races can lead to memory corruption.
The flaw was corrected in commit d1c7658 by adding trait bounds T: Sync
and T::Owned: Send
to the Send
impl for Cow<'_, T, U>
.
See advisory page for additional details.
This will be fixed as soon as lotabout/skim#389 is released in a new version