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CVE-2023-32248

Tree connection null pointer dereference denial-of-service vulnerability

Published: 7/24/2023 Last updated: 8/2/2024 Reserved: 5/5/2023

A flaw was found in the Linux kernel's ksmbd, a high-performance in-kernel SMB server. The specific flaw exists within the handling of SMB2_TREE_CONNECT and SMB2_QUERY_INFO commands. The issue results from the lack of proper validation of a pointer prior to accessing it. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.

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

Metrics

Version Score Severity Vector String
3.1 7.5 High CVSS:3.1/AV:N/AC:L/PR:N/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 (8)

Product Vendor Version
Fedora Fedora RI.2023.01
Red Hat Enterprise Linux 6 Red Hat 6.2(9a)
Red Hat Enterprise Linux 7 Red Hat n/a
Red Hat Enterprise Linux 8 Red Hat 23.0 ap384639
Red Hat Enterprise Linux 9 Red Hat 1.8.4
Red Hat Enterprise Linux 7 Red Hat 23.0 ap384622
Red Hat Enterprise Linux 9 Red Hat 6.2(11c)
kernel n/a 23.0 ap384431

References (8)