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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 (29)

albatross cdrom conf-bpftool conf-libbpf conf-linux-libc-dev core core_unix hvsock mirage-block-unix mm ocaml-probes ortools_solvers orun rawlink rawlink-eio rawlink-lwt restricted 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 (16)

Product Vendor Version
Fedora Fedora 2.6.12
Red Hat Enterprise Linux 6 Red Hat 4.1.18
Red Hat Enterprise Linux 7 Red Hat n/a
Red Hat Enterprise Linux 9 Red Hat < 48d69290270891f988e72edddd9688c20515421d
Fedora Fedora < 7e4d9120cfa413dd34f4f434befc5dbe6c38b2e5
Red Hat Enterprise Linux 6 Red Hat < 5f369efd9d963c1f711a06c9b8baf9f5ce616d85
Red Hat Enterprise Linux 7 Red Hat < 81d7d920a22fd58ef9aedb1bd0a68ee32bd23e96
Red Hat Enterprise Linux 8 Red Hat < 567c0411dc3b424fc7bd1e6109726d7ba32d4f73
Red Hat Enterprise Linux 9 Red Hat < 5f9fe302dd3a9bbc50f4888464c1773f45166bfd
Red Hat Enterprise Linux 9 Red Hat < 37010021d7e0341bb241ca00bcbae31f2c50b23f
Red Hat Enterprise Linux 8 Red Hat < 7627864dc3121f39e220f5253a227edf472de59e
Red Hat Enterprise Linux 7 Red Hat < 8d1753973f598531baaa2c1033cf7f7b5bb004b0
Red Hat Enterprise Linux 9 Red Hat < 2535b848fa0f42ddff3e5255cf5e742c9b77bb26
Red Hat Enterprise Linux 8 Red Hat < 3ead59bafad05f2967ae2438c0528d53244cfde5
kernel n/a < 2024 Q1 (18.0.24.130)
kernel n/a < 369f419c097e82407dd429a202cde9a73d3ae29b

References (12)

Credits (2)