CVE Published: 29/07/2020 |
CVE Updated: 16/09/2024 |
CVE Year: 2020 Source: canonical |
Vendor: Ubuntu |
Product: grub2 in Ubuntu Status : PUBLISHED
CVE-2020-15706 Description
GRUB2 contains a race condition in grub_script_function_create() leading to a use-after-free vulnerability which can be triggered by redefining a function whilst the same function is already executing, leading to arbitrary code execution and secure boot restriction bypass. This issue affects GRUB2 version 2.04 and prior versions.
Metrics
CVSS Version: 3.1 |
Base Score: 6.4 MEDIUM Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
l➤ Exploitability Metrics: Attack Vector (AV)* LOCAL Attack Complexity (AC)* HIGH Privileges Required (PR)* HIGH User Interaction (UI)* NONE Scope (S)* UNCHANGED
l➤ Impact Metrics: Confidentiality Impact (C)* HIGH Integrity Impact (I)* HIGH Availability Impact (A)* HIGH
Weakness Enumeration (CWE)
CWE-ID: CWE-362 CWE Name: CWE-362 Race Condition (Concurrent Execution using Shared Resource with Improper Synchronization) Source: Ubuntu
Common Attack Pattern Enumeration and Classification (CAPEC)