Kernel: use-after-free in drivers/net/usb/lan78xx.c in lan78xx_disconnect
CVE-2023-6039

5.5MEDIUM

Key Information:

Vendor: Red Hat
Status: Kernel; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8
Vendor: CVE Published:; 9 November 2023

Summary

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 Version(s)

Kernel 6.5-rc5

References

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

vdb-entryx_refsource_REDHAT

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

issue-trackingx_refsource_REDHAT

https://github.com/torvalds/linux/commit/1e7417c188d0a83f...

CVSS V3.1

Score:

5.5

Severity:

MEDIUM

Confidentiality:

None

Integrity:

None

Availability:

None

Attack Vector:

Local

Attack Complexity:

Low

Privileges Required:

Low

User Interaction:

None

Scope:

Unchanged

Timeline

Vulnerability published
Nov 9, 2023
Vulnerability Reserved
Nov 8, 2023

Collectors

NVD DatabaseMitre Database

Credit

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