AZL-25353
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-25353.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/AZL-25353
- Upstream
- Published
- 2023-02-28T15:15:11Z
- Modified
- 2026-04-01T05:08:38.738283Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- CVE-2023-0461 affecting package kernel for versions less than 5.15.102.1-1
- Details
-
There is a use-after-free vulnerability in the Linux Kernel which can be exploited to achieve local privilege escalation. To reach the vulnerability kernel configuration flag CONFIGTLS or CONFIGXFRM_ESPINTCP has to be configured, but the operation does not require any privilege.
There is a use-after-free bug of icskulpdata of a struct inetconnectionsock.
When CONFIGTLS is enabled, user can install a tls context (struct tlscontext) on a connected tcp socket. The context is not cleared if this socket is disconnected and reused as a listener. If a new socket is created from the listener, the context is inherited and vulnerable.
The setsockopt TCP_ULP operation does not require any privilege.
We recommend upgrading past commit 2c02d41d71f90a5168391b6a5f2954112ba2307c
- References