GitHub Advisoryadvisory · crates.io

GHSA-c3cw-c387-pj65 Double free in crossbeam

CRITICAL Published 2021-08-25 Modified 2023-06-13 Official page ↗
Aliases
CVE-2018-20996
Ecosystem
crates.io
Packages
crossbeam
Severity
Critical
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-415
Reviewed
2021-08-19

Affected packages

• crates.io crossbeam: >= 0.4.0, < 0.4.1 → fixed in 0.4.1

Description

Even if an element is popped from a queue, crossbeam would run its destructor inside the epoch-based garbage collector. This is a source of double frees. The flaw was corrected by wrapping elements inside queues in a ManuallyDrop.

Related

Alias · CVE (1)

  • CVE-2018-20996 An issue was discovered in the crossbeam crate before 0.4.1 for Rust. vulnerability

Weakness · CWE (1)

References