CVE-2021-22556 Vulnerability Details

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CVE-2021-22556 Metadata Quick Info

CVE Published: 03/05/2022 | CVE Updated: 03/08/2024 | CVE Year: 2021
Source: Google | Vendor: Google LLC | Product: Fuchsia Kernel
Status : PUBLISHED

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CVE-2021-22556 Description

The Security Team discovered an integer overflow bug that allows an attacker with code execution to issue memory cache invalidation operations on pages that they don’t own, allowing them to control kernel memory from userspace. We recommend upgrading to kernel version 4.1 or beyond.

Metrics

CVSS Version: 3.1 | Base Score: 5.3 MEDIUM
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N

l➤ Exploitability Metrics:
    Attack Vector (AV)* LOCAL
    Attack Complexity (AC)* HIGH
    Privileges Required (PR)* LOW
    User Interaction (UI)* NONE
    Scope (S)* UNCHANGED

l➤ Impact Metrics:
    Confidentiality Impact (C)* HIGH
    Integrity Impact (I)* LOW
    Availability Impact (A)* NONE

Weakness Enumeration (CWE)

CWE-ID: CWE-190
CWE Name: CWE-190 Integer Overflow or Wraparound
Source: Google LLC

Common Attack Pattern Enumeration and Classification (CAPEC)

CAPEC-ID:
CAPEC Description:


Source: NVD (National Vulnerability Database).