Vulnerability identifier: #VU83905

Vulnerability risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-6039

CWE-ID: CWE-416

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor:

Description

The vulnerability allows a local user to perform a denial of service (DoS) atack.

The vulnerability exists due to a use-after-free error within the lan78xx_disconnect() function in drivers/net/usb/lan78xx.c. A local user can trigger a use-after-free error and crash the kernel.

Mitigation
Install update from vendor's website.

Vulnerable software versions

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

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.