Red Hat Enterprise Linux 7.6 update for kernel
| 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 |
kernel (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 Red Hat Enterprise Linux Server - TUS Operating systems & Components / Operating system 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
CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2021-4155
CWE-ID:
CWE-264 - Permissions, Privileges, and Access Controls
Exploit availability: No
DescriptionThe 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.
Install updates from vendor's website.
kernel (Red Hat package): 3.10.0-957.el7 - 3.10.0-957.86.1.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 - TUS: 7.6
Red Hat Enterprise Linux Server - AUS: 7.6
CPE2.3- cpe:2.3:a:red_hat:kernel_redhat_package:3.10.0-957.el7:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:a:red_hat:kernel_redhat_package:3.10.0-957.1.3.el7:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:a:red_hat:kernel_redhat_package:3.10.0-957.5.1.el7:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:a:red_hat:red_hat_enterprise_linux_server_-_update_services_for_sap_solutions:7.6:*:*:*:*:*:*:*
- cpe:2.3:a:red_hat:red_hat_enterprise_linux_server_for_ibm_power_le_-_update_services_for_sap_solutions:7.6:*:*:*:*:*:*:*
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_server_-_tus:7.6:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_server_-_aus:7.6:*:*:*:*:red_hat_enterprise_linux:*:*
https://access.redhat.com/errata/RHSA-2022:0531
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) Permissions, Privileges, and Access Controls
EUVDB-ID: #VU52033
Risk: Low
CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2020-0466
CWE-ID:
CWE-264 - Permissions, Privileges, and Access Controls
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to unspecified error, related to I/O subsystem in kernel. A local user can elevated privileges on the system.
Install updates from vendor's website.
kernel (Red Hat package): 3.10.0-957.el7 - 3.10.0-957.86.1.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 - TUS: 7.6
Red Hat Enterprise Linux Server - AUS: 7.6
CPE2.3- cpe:2.3:a:red_hat:kernel_redhat_package:3.10.0-957.el7:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:a:red_hat:kernel_redhat_package:3.10.0-957.1.3.el7:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:a:red_hat:kernel_redhat_package:3.10.0-957.5.1.el7:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:a:red_hat:red_hat_enterprise_linux_server_-_update_services_for_sap_solutions:7.6:*:*:*:*:*:*:*
- cpe:2.3:a:red_hat:red_hat_enterprise_linux_server_for_ibm_power_le_-_update_services_for_sap_solutions:7.6:*:*:*:*:*:*:*
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_server_-_tus:7.6:*:*:*:*:red_hat_enterprise_linux:*:*
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_server_-_aus:7.6:*:*:*:*:red_hat_enterprise_linux:*:*
https://access.redhat.com/errata/RHSA-2022:0531
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.
