CVE-2023-6039

MEDIUM 5.5

Kernel: use-after-free in drivers/net/usb/lan78xx.c in lan78xx_disconnect

CVSS Score

5.5

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-416
Vendor	n/a
Product	kernel
Published	Nov 9, 2023
Last Updated	Feb 27, 2025

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CVSS v3 Breakdown

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

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Affected Versions

n/a / Kernel

All versions affected

Red Hat / Red Hat Enterprise Linux 6

All versions affected

Red Hat / Red Hat Enterprise Linux 7

All versions affected

Red Hat / Red Hat Enterprise Linux 7

All versions affected

Red Hat / Red Hat Enterprise Linux 8

All versions affected

Red Hat / Red Hat Enterprise Linux 8

All versions affected

Red Hat / Red Hat Enterprise Linux 9

All versions affected

Red Hat / Red Hat Enterprise Linux 9

All versions affected

Fedora / Fedora

All versions affected

References

NVD ↗ CVE.org ↗ EPSS Data ↗

access.redhat.com: https://access.redhat.com/security/cve/CVE-2023-6039 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2248755 github.com: https://github.com/torvalds/linux/commit/1e7417c188d0a83fb385ba2dbe35fd2563f2b6f3

Credits

Red Hat would like to thank Duoming Zhou for reporting this issue.