GitHub Advisoryadvisory · crates.io

GHSA-68p4-pjpf-xwcq insert_slice_clone can double drop if Clone panics.

MEDIUM Published 2022-05-24 Modified 2023-06-13 Official page ↗
Aliases
CVE-2021-26954
Ecosystem
crates.io
Packages
qwutils
Severity
Moderate
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Weaknesses
CWE-415
Reviewed
2022-06-17

Affected packages

• crates.io qwutils: < 0.3.1 → fixed in 0.3.1

Description

Affected versions of this crate used ptr::copy when inserting into the middle of a Vec. When ownership was temporarily duplicated during this copy, it calls the clone method of a user provided element. This issue can result in an element being double-freed if the clone call panics. Commit `20cb73d` fixed this issue by adding a set_len(0) call before operating on the vector to avoid dropping the elements during a panic.

Related

Alias · CVE (1)

  • CVE-2021-26954 An issue was discovered in the qwutils crate before 0.3.1 for Rust. vulnerability

Weakness · CWE (1)

References