Use-after-free in Linux kernel usb serial driver

1) Use-after-free

EUVDB-ID: #VU100613

Risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-50267

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the edge_bulk_out_data_callback() and edge_bulk_out_cmd_callback() functions in drivers/usb/serial/io_edgeport.c. A local user can escalate privileges on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

CPE2.3

• cpe:2.3:o:linux_foundation:linux_kernel:*:*:*:*:*:*:*:

External links

http://git.kernel.org/stable/c/e6ceb04eeb6115d872d4c4078d12f1170ed755ce
http://git.kernel.org/stable/c/39709ce93f5c3f9eb535efe2afea088805d1128f
http://git.kernel.org/stable/c/e567fc8f7a4460e486e52c9261b1e8b9f5dc42aa
http://git.kernel.org/stable/c/44fff2c16c5aafbdb70c7183dae0a415ae74705e
http://git.kernel.org/stable/c/275258c30bbda29467216e96fb655b16bcc9992b
http://git.kernel.org/stable/c/13d6ff3ca76056d06a9d88300be2a293442ff595
http://git.kernel.org/stable/c/314bdf446053e123f37543aa535197ee75f8aa97
http://git.kernel.org/stable/c/37bb5628379295c1254c113a407cab03a0f4d0b4

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.