Red Hat Enterprise Linux 8 update for kernel-rt

Published: 2023-01-12

Risk	Low
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2022-2964 CVE-2022-4139
CWE-ID	CWE-787 CWE-119
Exploitation vector	Local
Public exploit	N/A
Vulnerable software Subscribe	Red Hat Enterprise Linux for Real Time for NFV Operating systems & Components / Operating system Red Hat Enterprise Linux for Real Time Operating systems & Components / Operating system kernel-rt (Red Hat package) Operating systems & Components / Operating system package or component
Vendor	Red Hat Inc.

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Out-of-bounds write

EUVDB-ID: #VU67811

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-2964

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error within the ASIX AX88179_178A-based USB 2.0/3.0 Gigabit Ethernet Devices driver in Linux kernel. A local user can trigger an out-of-bounds write and execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux for Real Time for NFV: 8

Red Hat Enterprise Linux for Real Time: 8

kernel-rt (Red Hat package): before 4.18.0-425.10.1.rt7.220.el8_7

External links

http://access.redhat.com/errata/RHSA-2023:0114

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.

2) Buffer overflow

EUVDB-ID: #VU70460