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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2023-4194 Detail

Description

A flaw was found in the Linux kernel's TUN/TAP functionality. This issue could allow a local user to bypass network filters and gain unauthorized access to some resources. The original patches fixing CVE-2023-1076 are incorrect or incomplete. The problem is that the following upstream commits - a096ccca6e50 ("tun: tun_chr_open(): correctly initialize socket uid"), - 66b2c338adce ("tap: tap_open(): correctly initialize socket uid"), pass "inode->i_uid" to sock_init_data_uid() as the last parameter and that turns out to not be accurate.


Metrics

 
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CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://access.redhat.com/errata/RHSA-2023:6583 Third Party Advisory 
https://access.redhat.com/errata/RHSA-2023:6583 Third Party Advisory 
https://access.redhat.com/security/cve/CVE-2023-4194 Third Party Advisory 
https://access.redhat.com/security/cve/CVE-2023-4194 Third Party Advisory 
https://bugzilla.redhat.com/show_bug.cgi?id=2229498 Issue Tracking  Third Party Advisory 
https://bugzilla.redhat.com/show_bug.cgi?id=2229498 Issue Tracking  Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/344H6HO6SSC4KT7PDFXSDIXKMKHISSGF/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3TYLSJ2SAI7RF56ZLQ5CQWCJLVJSD73Q/
https://lore.kernel.org/all/20230731164237.48365-1-lersek@redhat.com/ Mailing List  Patch  Vendor Advisory 
https://lore.kernel.org/all/20230731164237.48365-1-lersek@redhat.com/ Mailing List  Patch  Vendor Advisory 
https://lore.kernel.org/all/20230731164237.48365-2-lersek@redhat.com/ Mailing List  Patch  Vendor Advisory 
https://lore.kernel.org/all/20230731164237.48365-2-lersek@redhat.com/ Mailing List  Patch  Vendor Advisory 
https://lore.kernel.org/all/20230731164237.48365-3-lersek@redhat.com/ Mailing List  Patch  Vendor Advisory 
https://lore.kernel.org/all/20230731164237.48365-3-lersek@redhat.com/ Mailing List  Patch  Vendor Advisory 
https://security.netapp.com/advisory/ntap-20231027-0002/
https://www.debian.org/security/2023/dsa-5480
https://www.debian.org/security/2023/dsa-5492

Weakness Enumeration

CWE-ID CWE Name Source
CWE-863 Incorrect Authorization cwe source acceptance level NIST   Red Hat, Inc.  
CWE-843 Access of Resource Using Incompatible Type ('Type Confusion') cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

16 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2023-4194
NVD Published Date:
08/07/2023
NVD Last Modified:
11/21/2024
Source:
Red Hat, Inc.