CVE-2021-30457: Double-free in id-map

August 25, 2021 (updated June 13, 2023)

A double free can occur in remove_set upon a panic in a Drop impl. When removing a set of elements, ptr::drop_in_place is called on each of the element to be removed. If the Drop impl of one of these elements panics then the previously dropped elements can be dropped again.

References

github.com/advisories/GHSA-rccq-j2m7-8fwr
github.com/andrewhickman/id-map
github.com/andrewhickman/id-map/issues/3
nvd.nist.gov/vuln/detail/CVE-2021-30457
rustsec.org/advisories/RUSTSEC-2021-0052.html

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