advisory-db/crates/arenavec/RUSTSEC-2021-0040.md

[advisory]
id = "RUSTSEC-2021-0040"
package = "arenavec"
aliases = ["CVE-2021-29930", "CVE-2021-29931"]
cvss = "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
date = "2021-01-12"
url = "https://github.com/ibabushkin/arenavec/issues/1"
categories = ["memory-corruption"]

[versions]
patched = []

panic safety: double drop or uninitialized drop of T upon panic

Affected versions of this crate did not guard against potential panics that may happen from user-provided functions T::default() and T::drop().

Panic within T::default() leads to dropping uninitialized T, when it is invoked from common::Slice::<T, H>::new(). Panic within T::drop() leads to double drop of T, when it is invoked either from common::SliceVec::<T, H>::resize_with() or common::SliceVec::<T, H>::resize()

Either case causes memory corruption in the heap memory.