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advisory-db/crates/insert_many/RUSTSEC-2021-0042.md
Alexis Mousset 84c633df9c Update aliases from GHSA OSV export (#1693)
2023-06-13 15:10:24 +02:00

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[advisory]
id = "RUSTSEC-2021-0042"
package = "insert_many"
aliases = ["CVE-2021-29933", "GHSA-29hg-r7c7-54fr"]
cvss = "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
date = "2021-01-26"
url = "https://github.com/rphmeier/insert_many/issues/1"
categories = ["memory-corruption"]
keywords = ["memory-safety", "double-free"]

[versions]
patched = []

insert_many can drop elements twice on panic

Affected versions of insert_many used ptr::copy to move over items in a vector to make space before inserting, duplicating their ownership. It then iterated over a provided Iterator to insert the new items.

If the iterator's .next() method panics then the vector would drop the same elements twice.