CVE-2023-6039

Published: Nov 9, 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 lan78xx_disconnect in drivers/net/usb/lan78xx.c in the network sub-component, net/usb/lan78xx in the Linux Kernel. This flaw allows a local attacker to crash the system when the LAN78XX USB device detaches.

Affected (5)

Products: Linux: Linux Kernel

1 product

Configuration A

5 vulnerable

Vulnerable Software	Affected Versions
Linux Linux Kernel	Before 6.5
Linux Linux Kernel	Version 6.5 rc1
Linux Linux Kernel	Version 6.5 rc2
Linux Linux Kernel	Version 6.5 rc3
Linux Linux Kernel	Version 6.5 rc4

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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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-2023-6039

Source: secalert@redhat.com

Third Party Advisory

https://bugzilla.redhat.com/show_bug.cgi?id=2248755

Source: secalert@redhat.com

Issue TrackingPatchThird Party Advisory

https://github.com/torvalds/linux/commit/1e7417c188d0a83fb385ba2dbe35fd2563f2b6f3

Source: secalert@redhat.com

Patch

https://access.redhat.com/security/cve/CVE-2023-6039

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

Third Party Advisory

https://bugzilla.redhat.com/show_bug.cgi?id=2248755

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

Issue TrackingPatchThird Party Advisory

https://github.com/torvalds/linux/commit/1e7417c188d0a83fb385ba2dbe35fd2563f2b6f3

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

Patch

Timeline

No history available yet.