CVE-2023-4194

CVSS V2 None CVSS V3 None
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.
Overview
  • CVE ID
  • CVE-2023-4194
  • Assigner
  • redhat
  • Vulnerability Status
  • PUBLISHED
  • Published Version
  • 2023-08-07T13:19:44.215Z
  • Last Modified Date
  • 2024-05-23T21:15:58.026Z
Weakness Enumerations
CWE URL
CWE-863 http://cwe.mitre.org/data/definitions/863.html
References
Reference URL Reference Tags
https://access.redhat.com/errata/RHSA-2023:6583 vendor-advisory x_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2023-4194 vdb-entry x_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2229498 issue-tracking x_refsource_REDHAT
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/
https://lore.kernel.org/all/20230731164237.48365-2-lersek@redhat.com/
https://lore.kernel.org/all/20230731164237.48365-3-lersek@redhat.com/
https://security.netapp.com/advisory/ntap-20231027-0002/
https://www.debian.org/security/2023/dsa-5480
https://www.debian.org/security/2023/dsa-5492
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2023-4194
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-4194
History
Created Old Value New Value Data Type Notes
2024-06-24 20:09:07 Added to TrackCVE