CVSS 7.8 · High EPSS 0,65%
Kerentanan Use After Free pada linux kernel. Skor CVSS 3.1 7.8 (High) menurut NVD.
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
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
· uraikan di kalkulator | Vendor | Produk | Versi terdampak |
|---|---|---|
| linux | linux kernel | Versi 4.13.0 hingga sebelum 4.14.303 |
| linux | linux kernel | Versi 4.19 hingga sebelum 4.19.270 |
| linux | linux kernel | Versi 5.4 hingga sebelum 5.4.229 |
| linux | linux kernel | Versi 5.10 hingga sebelum 5.10.163 |
| linux | linux kernel | Versi 5.15 hingga sebelum 5.15.88 |
| linux | linux kernel | Versi 6.0 hingga sebelum 6.0.19 |
| linux | linux kernel | Versi 6.1 hingga sebelum 6.1.5 |
| linux | linux kernel | Versi 6.2 rc1 |
| linux | linux kernel | Versi 6.2 rc2 |