CVE-2023-2513

Published: May 8, 2023Modified: Apr 23, 2025

6.7

Vector

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

Exploitability: 0.8 / Impact: 5.9

Source: NVD

Description

A use-after-free vulnerability was found in the Linux kernel's ext4 filesystem in the way it handled the extra inode size for extended attributes. This flaw could allow a privileged local user to cause a system crash or other undefined behaviors.

Affected (5)

Products: Linux: Linux Kernel · Redhat: Enterprise Linux

1 product

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Linux Linux Kernel	Up to 5.19

Configuration B

4 vulnerable

Vulnerable Software	Affected Versions
Redhat Enterprise Linux	Version 6.0
Redhat Enterprise Linux	Version 7.0
Redhat Enterprise Linux	Version 8.0
Redhat Enterprise Linux	Version 9.0

Related CWEs

CWE-416

Use After Free

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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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://bugzilla.redhat.com/show_bug.cgi?id=2193097

Source: secalert@redhat.com

Issue TrackingThird Party Advisory

https://github.com/torvalds/linux/commit/67d7d8ad99be

Source: secalert@redhat.com

Patch

https://lore.kernel.org/all/20220616021358.2504451-1-libaokun1%40huawei.com/

Source: secalert@redhat.com

https://bugzilla.redhat.com/show_bug.cgi?id=2193097

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

Issue TrackingThird Party Advisory

https://github.com/torvalds/linux/commit/67d7d8ad99be

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

Patch

https://lore.kernel.org/all/20220616021358.2504451-1-libaokun1%40huawei.com/

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

Timeline

No history available yet.