Red Hat Enterprise Linux 7 update for kernel
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 4 |
| CVE-ID | CVE-2020-10757 CVE-2020-12653 CVE-2020-12654 CVE-2020-10713 |
| CWE-ID | CWE-269 CWE-264 CWE-787 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #4 is available. |
| Vulnerable software Subscribe |
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 for x86_64 - Extended Update Support Operating systems & Components / Operating system Red Hat Virtualization Host - Extended Update Support 4.2 for RHEL Operating systems & Components / Operating system Red Hat Enterprise Linux Server - TUS Operating systems & Components / Operating system Red Hat Enterprise Linux for Power, little endian - Extended Update Support Operating systems & Components / Operating system Red Hat Enterprise Linux EUS Compute Node Operating systems & Components / Operating system Red Hat Enterprise Linux for Power, big endian - Extended Update Support Operating systems & Components / Operating system Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 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 4 vulnerabilities.
1) Improper Privilege Management
EUVDB-ID: #VU29957
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-2020-10757
CWE-ID:
CWE-269 - Improper Privilege Management
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists in the Linux Kernel in versions after 4.5-rc1 in the way mremap handled DAX Huge Pages. This flaw allows a local attacker with access to a DAX enabled storage to escalate their privileges on the system.
MitigationInstall updates from vendor's website.
kernel (Red Hat package): 3.10.0-123.1.2.el7 - 3.10.0-957.54.1.el7
Red Hat Enterprise Linux for x86_64 - Extended Update Support: 7.6
Red Hat Virtualization Host - Extended Update Support 4.2 for RHEL: 7.6
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 for Power, little endian - Extended Update Support: 7.6
Red Hat Enterprise Linux EUS Compute Node: 7.6
Red Hat Enterprise Linux for Power, big endian - Extended Update Support: 7.6
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support: 7.6
Red Hat Enterprise Linux Server - AUS: 7.6
CPE2.3- cpe:2.3:o:red_hat:kernel_redhat_package:3.10.0-693.71.2.el7:*:*:*:*:red_hat_enterprise_linux:*:
- cpe:2.3:o:red_hat:kernel_redhat_package:3.10.0-327.90.2.el7:*:*:*:*:red_hat_enterprise_linux:*:
- cpe:2.3:o:red_hat:kernel_redhat_package:3.10.0-327.89.1.el7:*:*:*:*:red_hat_enterprise_linux:*:
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_x86_64_-_extended_update_support:7.6:*:*:*:*:red_hat_enterprise_linux:*:
- cpe:2.3:o:red_hat:red hat virtualization host - extended update support 4.2 for rhel:7.6:*:*:*:*:red_hat_enterprise_linux:*:
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_server_-_update_services_for_sap_solutions:7.6:*:*:*:*:*:*:
- cpe:2.3:o: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_for_power_little_endian_-_extended_update_support:7.6:*:*:*:*:red_hat_enterprise_linux:*:
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_eus_compute_node:7.6:*:*:*:*:red_hat_enterprise_linux:*:
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_power_big_endian_-_extended_update_support:7.6:*:*:*:*:red_hat_enterprise_linux:*:
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_ibm_z_systems_-_extended_update_support:7.6:*:*:*:*:red_hat_enterprise_linux:*:
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_server_-_aus:7.6:*:*:*:*:red_hat_enterprise_linux:*:
http://access.redhat.com/errata/RHSA-2020:3226
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: #VU28164
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-2020-12653
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 application does not properly impose security restrictions in the "mwifiex_cmd_append_vsie_tlv()" function in "drivers/net/wireless/marvell/mwifiex/scan.c" file. A local user can gain elevated privileges on the target system.
MitigationInstall updates from vendor's website.
kernel (Red Hat package): 3.10.0-123.1.2.el7 - 3.10.0-957.54.1.el7
Red Hat Enterprise Linux for x86_64 - Extended Update Support: 7.6
Red Hat Virtualization Host - Extended Update Support 4.2 for RHEL: 7.6
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 for Power, little endian - Extended Update Support: 7.6
Red Hat Enterprise Linux EUS Compute Node: 7.6
Red Hat Enterprise Linux for Power, big endian - Extended Update Support: 7.6
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support: 7.6
Red Hat Enterprise Linux Server - AUS: 7.6
CPE2.3- cpe:2.3:o:red_hat:kernel_redhat_package:3.10.0-693.71.2.el7:*:*:*:*:red_hat_enterprise_linux:*:
- cpe:2.3:o:red_hat:kernel_redhat_package:3.10.0-327.90.2.el7:*:*:*:*:red_hat_enterprise_linux:*:
- cpe:2.3:o:red_hat:kernel_redhat_package:3.10.0-327.89.1.el7:*:*:*:*:red_hat_enterprise_linux:*:
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_x86_64_-_extended_update_support:7.6:*:*:*:*:red_hat_enterprise_linux:*:
- cpe:2.3:o:red_hat:red hat virtualization host - extended update support 4.2 for rhel:7.6:*:*:*:*:red_hat_enterprise_linux:*:
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_server_-_update_services_for_sap_solutions:7.6:*:*:*:*:*:*:
- cpe:2.3:o: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_for_power_little_endian_-_extended_update_support:7.6:*:*:*:*:red_hat_enterprise_linux:*:
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_eus_compute_node:7.6:*:*:*:*:red_hat_enterprise_linux:*:
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_power_big_endian_-_extended_update_support:7.6:*:*:*:*:red_hat_enterprise_linux:*:
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_ibm_z_systems_-_extended_update_support:7.6:*:*:*:*:red_hat_enterprise_linux:*:
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_server_-_aus:7.6:*:*:*:*:red_hat_enterprise_linux:*:
http://access.redhat.com/errata/RHSA-2020:3226
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.
3) Out-of-bounds write
EUVDB-ID: #VU28162
Risk: High
CVSSv3.1: 8.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-12654
CWE-ID:
CWE-787 - Out-of-bounds write
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error when processing untrusted input in the "mwifiex_ret_wmm_get_status()" function in "drivers/net/wireless/marvell/mwifiex/wmm.c" file. A remote attacker can trigger out-of-bounds write and execute arbitrary code on the target system.
MitigationInstall updates from vendor's website.
kernel (Red Hat package): 3.10.0-123.1.2.el7 - 3.10.0-957.54.1.el7
Red Hat Enterprise Linux for x86_64 - Extended Update Support: 7.6
Red Hat Virtualization Host - Extended Update Support 4.2 for RHEL: 7.6
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 for Power, little endian - Extended Update Support: 7.6
Red Hat Enterprise Linux EUS Compute Node: 7.6
Red Hat Enterprise Linux for Power, big endian - Extended Update Support: 7.6
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support: 7.6
Red Hat Enterprise Linux Server - AUS: 7.6
CPE2.3- cpe:2.3:o:red_hat:kernel_redhat_package:3.10.0-693.71.2.el7:*:*:*:*:red_hat_enterprise_linux:*:
- cpe:2.3:o:red_hat:kernel_redhat_package:3.10.0-327.90.2.el7:*:*:*:*:red_hat_enterprise_linux:*:
- cpe:2.3:o:red_hat:kernel_redhat_package:3.10.0-327.89.1.el7:*:*:*:*:red_hat_enterprise_linux:*:
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_x86_64_-_extended_update_support:7.6:*:*:*:*:red_hat_enterprise_linux:*:
- cpe:2.3:o:red_hat:red hat virtualization host - extended update support 4.2 for rhel:7.6:*:*:*:*:red_hat_enterprise_linux:*:
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_server_-_update_services_for_sap_solutions:7.6:*:*:*:*:*:*:
- cpe:2.3:o: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_for_power_little_endian_-_extended_update_support:7.6:*:*:*:*:red_hat_enterprise_linux:*:
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_eus_compute_node:7.6:*:*:*:*:red_hat_enterprise_linux:*:
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_power_big_endian_-_extended_update_support:7.6:*:*:*:*:red_hat_enterprise_linux:*:
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_ibm_z_systems_-_extended_update_support:7.6:*:*:*:*:red_hat_enterprise_linux:*:
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_server_-_aus:7.6:*:*:*:*:red_hat_enterprise_linux:*:
http://access.redhat.com/errata/RHSA-2020:3226
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
4) Out-of-bounds Write
EUVDB-ID: #VU32922
Risk: Low
CVSSv3.1: 6.1 [CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]
CVE-ID: CVE-2020-10713
CWE-ID:
CWE-787 - Out-of-bounds write
Exploit availability: Yes
Description
The vulnerability allows a local attacker to compromise vulnerable system.
The vulnerability exists due to a "BootHole" issue. An attacker with physical access can install persistent and stealthy bootkits or malicious bootloaders, trigger out-of-bounds write and execute arbitrary code on the target system.
MitigationInstall updates from vendor's website.
kernel (Red Hat package): 3.10.0-123.1.2.el7 - 3.10.0-957.54.1.el7
Red Hat Enterprise Linux for x86_64 - Extended Update Support: 7.6
Red Hat Virtualization Host - Extended Update Support 4.2 for RHEL: 7.6
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 for Power, little endian - Extended Update Support: 7.6
Red Hat Enterprise Linux EUS Compute Node: 7.6
Red Hat Enterprise Linux for Power, big endian - Extended Update Support: 7.6
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support: 7.6
Red Hat Enterprise Linux Server - AUS: 7.6
CPE2.3- cpe:2.3:o:red_hat:kernel_redhat_package:3.10.0-693.71.2.el7:*:*:*:*:red_hat_enterprise_linux:*:
- cpe:2.3:o:red_hat:kernel_redhat_package:3.10.0-327.90.2.el7:*:*:*:*:red_hat_enterprise_linux:*:
- cpe:2.3:o:red_hat:kernel_redhat_package:3.10.0-327.89.1.el7:*:*:*:*:red_hat_enterprise_linux:*:
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_x86_64_-_extended_update_support:7.6:*:*:*:*:red_hat_enterprise_linux:*:
- cpe:2.3:o:red_hat:red hat virtualization host - extended update support 4.2 for rhel:7.6:*:*:*:*:red_hat_enterprise_linux:*:
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_server_-_update_services_for_sap_solutions:7.6:*:*:*:*:*:*:
- cpe:2.3:o: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_for_power_little_endian_-_extended_update_support:7.6:*:*:*:*:red_hat_enterprise_linux:*:
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_eus_compute_node:7.6:*:*:*:*:red_hat_enterprise_linux:*:
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_power_big_endian_-_extended_update_support:7.6:*:*:*:*:red_hat_enterprise_linux:*:
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_for_ibm_z_systems_-_extended_update_support:7.6:*:*:*:*:red_hat_enterprise_linux:*:
- cpe:2.3:o:red_hat:red_hat_enterprise_linux_server_-_aus:7.6:*:*:*:*:red_hat_enterprise_linux:*:
http://access.redhat.com/errata/RHSA-2020:3226
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. However, proof of concept for this vulnerability is available.
