Red Hat Enterprise Linux Server 7.6 update for kpatch-patch

Published: 2022-02-15

Risk	Low
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2021-4155 CVE-2020-0466
CWE-ID	CWE-264
Exploitation vector	Local
Public exploit	N/A
Vulnerable software Subscribe	kpatch-patch-3_10_0-957_84_1 (Red Hat package) Operating systems & Components / Operating system package or component kpatch-patch-3_10_0-957_80_1 (Red Hat package) Operating systems & Components / Operating system package or component kpatch-patch-3_10_0-957_78_2 (Red Hat package) Operating systems & Components / Operating system package or component kpatch-patch-3_10_0-957_76_1 (Red Hat package) Operating systems & Components / Operating system package or component kpatch-patch-3_10_0-957_72_1 (Red Hat package) Operating systems & Components / Operating system package or component kpatch-patch-3_10_0-957_70_1 (Red Hat package) Operating systems & Components / Operating system package or component Red Hat Enterprise Linux Server for x86_64 - Update Services for SAP Solutions Operating systems & Components / Operating system package or component Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions Operating systems & Components / Operating system package or component kpatch-patch-3_10_0-957_86_1 (Red Hat package) Operating systems & Components / Operating system package or component Red Hat Enterprise Linux Server - AUS Operating systems & Components / Operating system
Vendor	Red Hat Inc.

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU59812

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2021-4155

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a local user to bypass implemented security restrictions.

The vulnerability exists due to the OS kernel does not impose correctly security restrictions. A local user can gain access to sensitive information on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

kpatch-patch-3_10_0-957_84_1 (Red Hat package): 1-1.el7

kpatch-patch-3_10_0-957_80_1 (Red Hat package): 1-1.el7 - 1-2.el7

kpatch-patch-3_10_0-957_78_2 (Red Hat package): 1-1.el7 - 1-3.el7

kpatch-patch-3_10_0-957_76_1 (Red Hat package): 1-1.el7 - 1-4.el7

kpatch-patch-3_10_0-957_72_1 (Red Hat package): 1-1.el7 - 1-4.el7

kpatch-patch-3_10_0-957_70_1 (Red Hat package): 1-2.el7 - 1-6.el7

Red Hat Enterprise Linux Server for x86_64 - Update Services for SAP Solutions: 7.6

Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 7.6

Red Hat Enterprise Linux Server - AUS: 7.6

kpatch-patch-3_10_0-957_86_1 (Red Hat package): before 1-1.el7

CPE2.3

cpe:2.3:o:red_hat:kpatch-patch-3_10_0-957_84_1:1-1.el7:*:*:*:*:red_hat_enterprise_linux:*:*

External links

http://access.redhat.com/errata/RHSA-2022:0533

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

2) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU52033