CVE-2023-4622 Vulnerability Details

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CVE-2023-4622 Metadata Quick Info

CVE Published: 06/09/2023 | CVE Updated: 02/08/2024 | CVE Year: 2023
Source: Google | Vendor: Linux | Product: Kernel
Status : PUBLISHED

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CVE-2023-4622 Description

A use-after-free vulnerability in the Linux kernel\'s af_unix component can be exploited to achieve local privilege escalation. The unix_stream_sendpage() function tries to add data to the last skb in the peer\'s recv queue without locking the queue. Thus there is a race where unix_stream_sendpage() could access an skb locklessly that is being released by garbage collection, resulting in use-after-free. We recommend upgrading past commit 790c2f9d15b594350ae9bca7b236f2b1859de02c.

Metrics

CVSS Version: 3.1 | Base Score: 7.8 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

l➤ Exploitability Metrics:
    Attack Vector (AV)* LOCAL
    Attack Complexity (AC)* LOW
    Privileges Required (PR)* LOW
    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-416
CWE Name: CWE-416 Use After Free
Source: Linux

Common Attack Pattern Enumeration and Classification (CAPEC)

CAPEC-ID: CAPEC-233
CAPEC Description: CAPEC-233 Privilege Escalation


Source: NVD (National Vulnerability Database).