CVE-2023-0461
Vulnerability from cvelistv5
Published
2023-02-28 14:23
Modified
2024-08-02 05:10
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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 CONFIG_TLS or CONFIG_XFRM_ESPINTCP has to be configured, but the operation does not require any privilege. There is a use-after-free bug of icsk_ulp_data of a struct inet_connection_sock. When CONFIG_TLS is enabled, user can install a tls context (struct tls_context) 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
cve-coordination@google.comhttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=2c02d41d71f90a5168391b6a5f2954112ba2307cMailing List, Patch
cve-coordination@google.comhttps://kernel.dance/#2c02d41d71f90a5168391b6a5f2954112ba2307cPatch
cve-coordination@google.comhttps://lists.debian.org/debian-lts-announce/2023/05/msg00005.htmlThird Party Advisory
cve-coordination@google.comhttps://lists.debian.org/debian-lts-announce/2023/05/msg00006.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=2c02d41d71f90a5168391b6a5f2954112ba2307cMailing List, Patch
af854a3a-2127-422b-91ae-364da2661108https://kernel.dance/#2c02d41d71f90a5168391b6a5f2954112ba2307cPatch
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2023/05/msg00005.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2023/05/msg00006.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20230331-0006/
Impacted products
Vendor Product Version
Show details on NVD website

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