Privilege escalation in Linux kernel HID subsystem

1) Buffer overflow

EUVDB-ID: #VU74123

Risk: Low

CVSSv3.1: 5.9 [CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-1073

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows an attacker to compromise the affected system.

The vulnerability exists due to a boundary error in the Linux kernel human interface device (HID) subsystem. An attacker with physical access to the system can insert in a specific way malicious USB device, trigger memory corruption and execute arbitrary code.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Linux kernel: All versions

External links

http://www.openwall.com/lists/osssecurity/2023/01/17/3
http://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/id=b12fece4c64857e5fab4290bf01b2e0317a88456
http://bugzilla.redhat.com/show_bug.cgi?id=2173403

Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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