CVE-2021-3640 Vulnerability Details

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CVE-2021-3640 Metadata Quick Info

CVE Published: 03/03/2022 | CVE Updated: 03/08/2024 | CVE Year: 2021
Source: redhat | Vendor: n/a | Product: kernel
Status : PUBLISHED

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CVE-2021-3640 Description

A flaw use-after-free in function sco_sock_sendmsg() of the Linux kernel HCI subsystem was found in the way user calls ioct UFFDIO_REGISTER or other way triggers race condition of the call sco_conn_del() together with the call sco_sock_sendmsg() with the expected controllable faulting memory page. A privileged local user could use this flaw to crash the system or escalate their privileges on the system.

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-362
CWE Name: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ( Race Condition ), CWE-416 - Use After Free.
Source: n/a

Common Attack Pattern Enumeration and Classification (CAPEC)

CAPEC-ID:
CAPEC Description:


Source: NVD (National Vulnerability Database).