CVE Published: 20/07/2023 |
CVE Updated: 24/10/2024 |
CVE Year: 2022 Source: canonical |
Vendor: GNU Project |
Product: GNU GRUB Status : PUBLISHED
CVE-2022-28736 Description
There\'s a use-after-free vulnerability in grub_cmd_chainloader() function; The chainloader command is used to boot up operating systems that doesn\'t support multiboot and do not have direct support from GRUB2. When executing chainloader more than once a use-after-free vulnerability is triggered. If an attacker can control the GRUB2\'s memory allocation pattern sensitive data may be exposed and arbitrary code execution can be achieved.
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 Name: Source: GNU Project
Common Attack Pattern Enumeration and Classification (CAPEC)