CVE-2023-1076
CVSS V2 None
CVSS V3 None
Description
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.
Overview
- CVE ID
- CVE-2023-1076
- Assigner
- secalert@redhat.com
- Vulnerability Status
- Analyzed
- Published Version
- 2023-03-27T21:15:10
- Last Modified Date
- 2023-04-05T13:43:17
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* | 1 | OR |
References
| Reference URL | Reference Tags |
|---|---|
| https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=66b2c338adce580dfce2199591e65e2bab889cff | Mailing List Patch |
| https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=a096ccca6e503a5c575717ff8a36ace27510ab0a | Mailing List Patch |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2023-1076 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1076 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2023-04-17 03:33:59 | Added to TrackCVE | |||
| 2023-04-17 03:34:01 | Weakness Enumeration | new |