CVE Vulnerabilities

CVE-2020-36401

Double Free

Published: Jul 01, 2021 | Modified: Nov 21, 2024
CVSS 3.x
7.8
HIGH
Source:
NVD
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.x
6.8 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
Ubuntu
MEDIUM

mruby 2.1.2 has a double free in mrb_default_allocf (called from mrb_free and obj_free).

Weakness

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

Affected Software

Name Vendor Start Version End Version
Mruby Mruby 2.1.2 (including) 2.1.2 (including)
Mruby Ubuntu bionic *
Mruby Ubuntu esm-apps/jammy *
Mruby Ubuntu focal *
Mruby Ubuntu groovy *
Mruby Ubuntu hirsute *
Mruby Ubuntu impish *
Mruby Ubuntu jammy *
Mruby Ubuntu kinetic *
Mruby Ubuntu trusty *
Mruby Ubuntu upstream *
Mruby Ubuntu xenial *

Potential Mitigations

References