CVE-2018-16882 Vulnerability Details

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CVE-2018-16882 Metadata Quick Info

CVE Published: 03/01/2019 | CVE Updated: 05/08/2024 | CVE Year: 2018
Source: redhat | Vendor: The Linux Foundation | Product: kernel:
Status : PUBLISHED

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CVE-2018-16882 Description

A use-after-free issue was found in the way the Linux kernel\'s KVM hypervisor processed posted interrupts when nested(=1) virtualization is enabled. In nested_get_vmcs12_pages(), in case of an error while processing posted interrupt address, it unmaps the \'pi_desc_page\' without resetting \'pi_desc\' descriptor address, which is later used in pi_test_and_clear_on(). A guest user/process could use this flaw to crash the host kernel resulting in DoS or potentially gain privileged access to a system. Kernel versions before 4.14.91 and before 4.19.13 are vulnerable.

Metrics

CVSS Version: 3.1 | Base Score: n/a
Vector: n/a

l➤ Exploitability Metrics:
    Attack Vector (AV)*
    Attack Complexity (AC)*
    Privileges Required (PR)*
    User Interaction (UI)*
    Scope (S)*

l➤ Impact Metrics:
    Confidentiality Impact (C)*
    Integrity Impact (I)*
    Availability Impact (A)*

Weakness Enumeration (CWE)

CWE-ID: CWE-416
CWE Name: CWE-416
Source: The Linux Foundation

Common Attack Pattern Enumeration and Classification (CAPEC)

CAPEC-ID:
CAPEC Description:


Source: NVD (National Vulnerability Database).