CVE Vulnerabilities

CVE-2021-31162

Double Free

Published: Apr 14, 2021 | Modified: Nov 21, 2024
CVSS 3.x
9.8
CRITICAL
Source:
NVD
CVSS:3.1/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
9.8 MODERATE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Ubuntu
MEDIUM

In the standard library in Rust before 1.52.0, a double free can occur in the Vec::from_iter function if freeing the element panics.

Weakness

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

Affected Software

Name Vendor Start Version End Version
Rust Rust-lang 1.48.0 (including) 1.52.0 (excluding)
Red Hat Developer Tools RedHat rust-toolset-1.52-0:1.52.1-1.el7_9 *
Red Hat Developer Tools RedHat rust-toolset-1.52-rust-0:1.52.1-2.el7_9 *
Red Hat Enterprise Linux 8 RedHat rust-toolset:rhel8-8040020210603202531.2daa1a95 *
Rustc Ubuntu bionic *
Rustc Ubuntu esm-apps/focal *
Rustc Ubuntu esm-apps/xenial *
Rustc Ubuntu esm-infra-legacy/trusty *
Rustc Ubuntu focal *
Rustc Ubuntu groovy *
Rustc Ubuntu hirsute *
Rustc Ubuntu impish *
Rustc Ubuntu jammy *
Rustc Ubuntu kinetic *
Rustc Ubuntu trusty *
Rustc Ubuntu trusty/esm *
Rustc Ubuntu upstream *
Rustc Ubuntu xenial *

Potential Mitigations

References