A flaw was found in the Linux Kernel. The tun/tap sockets have their socket UID hardcoded to 0 due to a type confusion in their initialization function. While it will be often correct, as tuntap devices require CAP_NET_ADMIN, it may not always be the case, e.g., a non-root user only having that capability. This would make tun/tap sockets being incorrectly treated in filtering/routing decisions, possibly bypassing network filters.
References
Configurations
History
21 Nov 2024, 07:38
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=66b2c338adce580dfce2199591e65e2bab889cff - Mailing List, Patch | |
| References | () https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=a096ccca6e503a5c575717ff8a36ace27510ab0a - Mailing List, Patch | |
| References | () https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html - |
03 May 2023, 01:15
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| CPE | cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* | |
| CWE | CWE-843 | |
| References |
|
|
| References | (MISC) https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=a096ccca6e503a5c575717ff8a36ace27510ab0a - Mailing List, Patch | |
| References | (MISC) https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=66b2c338adce580dfce2199591e65e2bab889cff - Mailing List, Patch |
28 Mar 2023, 10:12
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2023-03-27 21:15
Updated : 2025-02-24 17:15
NVD link : CVE-2023-1076
Mitre link : CVE-2023-1076
CVE.ORG link : CVE-2023-1076
JSON object : View
Products Affected
linux
- linux_kernel