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
Affected Vendors & Products
Advisories
Source | ID | Title |
---|---|---|
![]() |
DLA-3623-1 | linux-5.10 security update |
![]() |
DSA-5480-1 | linux security update |
![]() |
DSA-5492-1 | linux security update |
![]() |
EUVD-2023-54072 | 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. |
![]() |
USN-6343-1 | Linux kernel (OEM) vulnerabilities |
![]() |
USN-6385-1 | Linux kernel (OEM) vulnerabilities |
![]() |
USN-6412-1 | Linux kernel vulnerabilities |
![]() |
USN-6416-1 | Linux kernel vulnerabilities |
![]() |
USN-6416-2 | Linux kernel vulnerabilities |
![]() |
USN-6416-3 | Linux kernel (Raspberry Pi) vulnerabilities |
![]() |
USN-6417-1 | Linux kernel vulnerabilities |
![]() |
USN-6445-1 | Linux kernel (Intel IoTG) vulnerabilities |
![]() |
USN-6445-2 | Linux kernel (Intel IoTG) vulnerabilities |
![]() |
USN-6466-1 | Linux kernel (NVIDIA) vulnerabilities |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Fri, 22 Nov 2024 12:00:00 +0000
Fri, 06 Sep 2024 18:30:00 +0000

Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2025-09-25T02:30:17.007Z
Reserved: 2023-08-06T15:05:48.734Z
Link: CVE-2023-4194

No data.

Status : Modified
Published: 2023-08-07T14:15:11.743
Modified: 2024-11-21T08:34:35.687
Link: CVE-2023-4194


No data.