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CVE-2023-1192

Use-after-free in smb2_is_status_io_timeout()

Published: 11/1/2023 Last updated: 2/27/2025 Reserved: 3/6/2023

A use-after-free flaw was found in smb2_is_status_io_timeout() in CIFS in the Linux Kernel. After CIFS transfers response data to a system call, there are still local variable points to the memory region, and if the system call frees it faster than CIFS uses it, CIFS will access a free memory region, leading to a denial of service.

CNA assigner: redhat (53f830b8-0a3f-465b-8143-3b8a9948e749) Requested by: n/a

Metrics

Version Score Severity Vector String
3.1 6.5 Medium CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Opam packages affected (27)

albatross cdrom conf-bpftool conf-libbpf conf-linux-libc-dev core core_unix hvsock mirage-block-unix mm ocaml-probes orun rawlink rawlink-eio rawlink-lwt shell solo5 solo5-bindings-hvt solo5-bindings-spt solo5-cross-aarch64 solo5-kernel-ukvm tracy-client tuntap uring vhd-format vhd-format-lwt xapi-stdext-unix

Products affected (9)

Product Vendor Version
Fedora Fedora 2.7
Red Hat Enterprise Linux 6 Red Hat SD675
Red Hat Enterprise Linux 7 Red Hat n/a
Red Hat Enterprise Linux 8 Red Hat SD865 5G
Red Hat Enterprise Linux 9 Red Hat SM6250P
Red Hat Enterprise Linux 8 Red Hat <= 3.3.0.6
Red Hat Enterprise Linux 7 Red Hat n/a
Red Hat Enterprise Linux 9 Red Hat n/a
kernel n/a < 16.5

References (6)

Credits (1)