CVE-2023-1249

Published: Mar 23, 2023Modified: Jun 17, 2026

5.5

Vector

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

Exploitability: 1.8 / Impact: 3.6

Source: NVD

Description

A use-after-free flaw was found in the Linux kernel’s core dump subsystem. This flaw allows a local user to crash the system. Only if patch 390031c94211 ("coredump: Use the vma snapshot in fill_files_note") not applied yet, then kernel could be affected.

Affected (1)

Products: Linux: Linux Kernel

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Linux Linux Kernel	Before 5.18

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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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 (4)

http://packetstormsecurity.com/files/171912/CentOS-Stream-9-Missing-Kernel-Security-Fix.html

Source: secalert@redhat.com

https://patchwork.kernel.org/project/linux-fsdevel/patch/87iltzn3nd.fsf_-_%40email.froward.int.ebiederm.org/

Source: secalert@redhat.com

http://packetstormsecurity.com/files/171912/CentOS-Stream-9-Missing-Kernel-Security-Fix.html

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

https://patchwork.kernel.org/project/linux-fsdevel/patch/87iltzn3nd.fsf_-_%40email.froward.int.ebiederm.org/

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

Timeline

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