AZL-27890
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-27890.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/AZL-27890
- Upstream
- Published
- 2023-08-07T14:15:11Z
- Modified
- 2026-04-01T05:09:32.714443Z
- Severity
-
- 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
- Summary
- CVE-2023-4194 affecting package kernel for versions less than 5.15.126.1-1
- Details
-
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: tunchropen(): correctly initialize socket uid"), - 66b2c338adce ("tap: tapopen(): correctly initialize socket uid"), pass "inode->iuid" to sockinitdata_uid() as the last parameter and that turns out to not be accurate.
- References