CVE Vulnerabilities

CVE-2018-20996

Double Free

Published: Aug 26, 2019 | Modified: Nov 21, 2024
CVSS 3.x
9.8
CRITICAL
Source:
NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
7.5 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
Ubuntu
MEDIUM

An issue was discovered in the crossbeam crate before 0.4.1 for Rust. There is a double free because of destructor mishandling.

Weakness

The product calls free() twice on the same memory address.

Affected Software

Name Vendor Start Version End Version
Crossbeam Crossbeam_project * 0.4.1 (excluding)
Rust-crossbeam-epoch Ubuntu disco *
Rust-crossbeam-epoch Ubuntu eoan *
Rust-crossbeam-epoch Ubuntu focal *
Rust-crossbeam-epoch Ubuntu groovy *
Rust-crossbeam-epoch Ubuntu hirsute *
Rust-crossbeam-epoch Ubuntu impish *
Rust-crossbeam-epoch Ubuntu kinetic *
Rust-crossbeam-epoch Ubuntu lunar *
Rust-crossbeam-epoch Ubuntu mantic *
Rust-crossbeam-epoch Ubuntu oracular *
Rust-crossbeam-epoch Ubuntu trusty *

Potential Mitigations

References