CVE-2023-1193

Published: Nov 1, 2023Modified: Jun 17, 2026

6.5

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploitability: 2.8 / Impact: 3.6

Source: NVD

Description

A use-after-free flaw was found in setup_async_work in the KSMBD implementation of the in-kernel samba server and CIFS in the Linux kernel. This issue could allow an attacker to crash the system by accessing freed work.

Affected (7)

Products: Linux: Linux Kernel

1 product

Configuration A

7 vulnerable

Vulnerable Software	Affected Versions
Linux Linux Kernel	Before 6.3
Linux Linux Kernel	Version 6.3
Linux Linux Kernel	Version 6.3 rc1
Linux Linux Kernel	Version 6.3 rc2
Linux Linux Kernel	Version 6.3 rc3
Linux Linux Kernel	Version 6.3 rc4
Linux Linux Kernel	Version 6.3 rc5

Related CWEs

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (6)

https://access.redhat.com/security/cve/CVE-2023-1193

Source: secalert@redhat.com

Third Party Advisory

https://bugzilla.redhat.com/show_bug.cgi?id=2154177

Source: secalert@redhat.com

Issue Tracking

https://lkml.kernel.org/linux-cifs/20230401084951.6085-2-linkinjeon@kernel.org/T/

Source: secalert@redhat.com

Mailing ListPatch

https://access.redhat.com/security/cve/CVE-2023-1193

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

https://bugzilla.redhat.com/show_bug.cgi?id=2154177

Source: af854a3a-2127-422b-91ae-364da2661108

Issue Tracking

https://lkml.kernel.org/linux-cifs/20230401084951.6085-2-linkinjeon@kernel.org/T/

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing ListPatch

Timeline

No history available yet.